Search Result
Results for "
fluorescence quencher
" in MedChemExpress (MCE) Product Catalog:
4
Biochemical Assay Reagents
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Product Name |
Target |
Research Areas |
Chemical Structure |
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- HY-43520
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Fluorescent Dye
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Others
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BODIPY-FL is a green fluorescent dye that can be used to label probes or primers. BODIPY-FL fluorescence can be quenched after interacting with uniquely positioned guanine, making it useful for quantifying specific DNA or RNA molecules. The maximum absorption wavelength of BODIPY-FL is 505 nm, and the maximum emission wavelength is 513 nm .
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- HY-W012642
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DNA Stain
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Others
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2-Aminopurine, a fluorescent analog of guanosine and adenosine, is a widely used fluorescence-decay-based probe of DNA structure. When 2-Aminopurine is inserted in anoligonucleotide, its fluorescence is highly quenched by stacking with the natural bases. 2-Aminopurine has been used to probe nucleic acid structure and dynamics .
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- HY-D0720
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NSC-151912; L-6868
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Fluorescent Dye
Reactive Oxygen Species (ROS)
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Others
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Lucigenin is a chemiluminescence probe. Lucigenin can be used to detect the production of endogenous superoxide anion radical (O 2-). Lucigenin is extremely sensitive to chloride ions, while it combined with chloride ions, the fluorescence will be quenched. Lucigenin also can be used as a chloride indicator. Ex/Em=455/505 nm .
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- HY-W074143
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Fluorescent Dye
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Others
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Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride ([Ru(dpp)3] 2+) is an electrochemiluminescent (ECL) probe and oxygen-sensitive sensor. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride can be used to modify electrode surfaces for the detection of sulfates (S2O8 2-) and oxalates, based on electrochemical reactions that generate excited-state species, releasing photons through irreversible redox reactions. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride utilizes the oxygen quenching of fluorescence mechanism, where fluorescence intensity reflects the metabolic rate of living microorganisms or oxygen levels within cells/tumors, allowing for real-time detection. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride's main applications include microbial detection, antibacterial activity studies, and tumor microenvironment research .
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- HY-15943
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6-TAMRA
1 Publications Verification
6-Carboxytetramethylrhodamine
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Fluorescent Dye
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Others
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6-TAMRA (6-Carboxytetramethylrhodamine) is a fluorescent dye. 6-TAMRA is often used in combination with 6-FAM (HY-66021) as an acceptor or fluorescence quencher for fluorescence resonance energy transfer (FRET) in biochemical studies such as potassium ion detection and ribonuclease activity assays .
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- HY-123630
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FD&C RED NO. 40; CI 16035
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Environmental Pollutants
Fluorescent Dye
5-HT Receptor
Interleukin Related
Reactive Oxygen Species (ROS)
IFNAR
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Inflammation/Immunology
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Allura Red AC is a food colorant, appearing as a deep red water-soluble powder or granules, used in various applications such as beverages, syrups, candies, and cereals. Allura Red AC can statically quench the intrinsic fluorescence of HSA. Additionally, Allura Red AC is a 5-hydroxytryptamine (5-HT) pathway-associated pro-inflammatory agent, capable of exacerbating experimental colitis. Allura Red AC holds potential for research in inflammatory bowel disease (IBD), intestinal barrier function, and food additive safety .
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- HY-W127703
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Fluorescent Dye
Biochemical Assay Reagents
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Others
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Octadecyl Rhodamine B chloride is an amphiphilic fluorescent probe with both membrane-binding ability and fluorescent properties, which easily forms aggregates in aqueous phase leading to self-quenching. Octadecyl Rhodamine B chloride can be used for cell membrane staining and further applied in membrane biology research. The maximum absorption/emission wavelengths of Octadecyl Rhodamine B chloride monomer in Triton X-100 are 565 nm/585 nm; the absorption peaks of aggregates in water are blue-shifted to 524 nm and 574 nm, with significantly quenched fluorescence .
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- HY-162543
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18:1 Lissamine rhodamine PE
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Fluorescent Dye
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Others
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18:1 Liss Rhod (18:1 Lissamine rhodamine) PE is a fluorescent phospholipid and fluorescent probe.18:1 Liss Rhod PE admixes into phospholipid inks for large-scale monitoring of dip-pen nanolithography-generated lithographic structures via fluorescence microscopy.18:1 Liss Rhod PE undergoes phase separation or self-quenching under certain conditions in thin lipid membrane stacks .
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- HY-126823
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PGSK diacetate (5/6-mixture)
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Fluorescent Dye
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Others
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Phen green SK (PGSK) diacetate (PGSK diacetate (5/6-mixture)) is a metal ion-sensitive fluorescent probe that can penetrate cell membranes. Phen green SK (PGSK) diacetate can react with a variety of metal ions, including Fe 2+, Cd 2+, Co 2+, Ni 2+, Zn 2+, etc. Phen green SK (PGSK) diacetate chelates Fe 2+, resulting in fluorescence quenching, which can be restored when a membrane-permeable chelator is added, thereby reflecting the changes in the intracellular chelatable iron pool. The excitation/emission maxima of Phen green SK diacetate are 507/532 nm, respectively .
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- HY-D2365
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Fluorescent Dye
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Others
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QSY 21 NHS is a dark quencher and an efficient energy transfer acceptor for far-red and near-infrared fluorescent probes. QSY 21 NHS operates at a wavelength range of 540-750 nm and is commonly used in FRET applications. QSY 21 NHS does not fluoresce under normal conditions. The NHS ester can be used to label primary amines (R-NH2) of proteins, amine-modified oligonucleotides and other amine-containing molecules. QSY 21 NHS can be conjugated with dendritic poly-L-lysine to achieve intramolecular quenching of Cy5 fluorescence .
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- HY-D1030
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Fluorescent Dye
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Others
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Fluorescein Biotin is a fluorescent modulator with avidin and streptavidin binding activity. Fluorescein Biotin binds to the biotin-binding sites of avidin and streptavidin, and this binding induces significant fluorescence quenching .
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- HY-W923198
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Methacryloyloxy fluorescein
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Fluorescent Dye
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Others
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Fluorescein O-methacrylate (Methacryloyloxy fluorescein) is a pH-responsive fluorescent monomeric dye. Fluorescein O-methacrylate exhibits pH-responsive fluorescence properties: its fluorescence is activated under alkaline conditions and quenched under neutral or acidic conditions; reversible switching of fluorescence is achievable by adjusting the pH of the solution. Fluorescein O-methacrylate can be used as a monomer for the synthesis of amphiphilic fluorescein polymers. These polymers can self-assemble into stable polymer nanoparticles with enhanced aqueous-phase fluorescence, and also enable the conjugation of nanoparticles with amine-containing biomolecules to support sensitive optical detection of biomarkers (Ex/Em = 490/520 nm) .
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- HY-W013195
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Nucleoside Antimetabolite/Analog
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Cancer
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8-Bromoadenosine is an adenosine analog. Adenosine analogs mostly act as smooth muscle vasodilators and have also been shown to inhibit cancer progression. 8-Bromoadenosine can quench the intrinsic fluorescence of human serum albumin (HSA) through static quenching procedure. 8-Bromoadenosine can be used to synthesize adenosine phosphate, such as Acadesine (HY-13417), Clofarabine (HY-A0005), Fludarabine phosphate (HY-B0028) and Vidarabine (HY-B0277) .
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- HY-D1590
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Fluorescent Dye
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Others
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ODIPY Green 8-P2M is a novel thiol-reactive fluorescence probe based on the BODIPY fluorophore, the fluorescence is strongly quenched by d-PeT and then can be restored after reaction with thiol, resulting in an extremely high signal-to-noise ratio. ODIPY Green 8-P2M can be useful for detecting extremely low concentrations of protein in the gel after SDS-PAGE .
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- HY-P3749
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Fluorescent Dye
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Others
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Mca-(ala7,lys(dnp)9)-bradykinin is a sensitive fluorogenic substrate for ECE-1 (endothelin-converting enzyme-1). The incorporation of a (7-methoxycoumarin-4-yl)acetyl (Mca) fluorescent group and a 2,4-dinitrophenyl (Dnp) quenching group has resulted in a large fluorescence increase upon substrate cleavage .
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- HY-N3103
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Ethyl (E)-p-hydroxycinnamate; Ethyl trans-4-hydroxycinnamate
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Tyrosinase
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Inflammation/Immunology
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p-Coumaric Acid Ethyl Ester (Ethyl (E)-p-hydroxycinnamate; Ethyl trans-4-hydroxycinnamate) is a non-competitive, reversible inhibitor of tyrosinase (IC50=4.89 μg/mL, Ki=1.83 μg/mL), which can quench the intrinsic fluorescence of the enzyme. p-Coumaric Acid Ethyl Ester changes the binding affinity of L-tyrosine by inducing conformational changes in the catalytic domain of tyrosinase, and does not bind to the copper ion of the enzyme. p-Coumaric Acid Ethyl Ester is used in the development of medicines, cosmetics and fruit preservation products using pollen .
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- HY-W127716
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Fluorescent Dye
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Cancer
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Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 is a potent ruthenium-based dye. Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 can bu used as an effective quencher of quantum dots (QDs) fluorescence and the capture probe of virus antigen EV71. Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 can be used sensitive electrogenerated chemiluminescence (ECL) labels for detection of matrix metalloproteinases (MMPs) .
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- HY-D1555
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Cy7 DBCO
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Fluorescent Dye
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Others
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Cyanine7 DBCO (Cy7 DBCO) is a near-infrared fluorescent dye and an efficient bio-orthogonal quencher. Cyanine7 DBCO is formed by covalent connection of the near-infrared fluorescent dye Cy7 and the dibenzocyclooctyne (DBCO) functional group. After reacting with N3-Cy5-COOH, the fluorescence of Cy5 decreases by 90% within 90 minutes, and rapid signal attenuation can be observed within 2-5 minutes. Cyanine7 DBCO can be used for the study of deep tissue imaging and receptor-targeted therapeutic strategies .
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- HY-D2864
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Fluorescent Dye
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Others
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Aza-CyBz is a selective NaCl-responsive fluorescent probe. Aza-CyBz visualizes plant salt stress by forming ordered aggregates with NaCl, leading to near-infrared fluorescence quenching. Aza-CyBz acts via electrostatic interaction between the cationic cyanine dye and NaCl to form J-aggregates, causing fluorescence quenching with a detection limit of 170 μM .
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- HY-42984
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Biochemical Assay Reagents
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Others
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BHQ-2 NHS is a dark quencher with no native emission due to the polyaromatic-azo backbone and a terminal NHS ester. UBHQ-2 NHS has a wide and intense quenching range from 560-670 nm, which makes it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications in conjunction with orange to far-red emitting dyes. The NHS ester can be applied to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
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- HY-W007359
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- HY-D0142
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Fluorescent Dye
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Others
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Pyrene-1,3,6,8-tetrasulfonic acid tetrasodium is a fluorescent dye and pH indicator, also as a ligand of multifunctional metal-organic framework. Pyrene-1,3,6,8-tetrasulfonic acid tetrasodium has been used to detect CO2 release. Pyrene-1,3,6,8-tetrasulfonic acid tetrasodium acts as a water-soluble fluorescent dye for fluorescence quenching assays monitoring gramicidin ion-channel activity .
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- HY-D0916
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YOYO 1; YOYO1
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Fluorescent Dye
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Others
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Thiazole orange dimer YOYO 1 (YOYO 1) is a cell-impermeable cyanine dimer with no inherent fluorescence, and its fluorescence intensity increases significantly upon binding to double-stranded DNA (dsDNA) . Thiazole orange dimer YOYO 1 can serve as a nuclear counterstain or a dead cell indicator (Ex/Em = 505/512 nm).
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- HY-P4920
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Fluorescent Dye
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Others
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Mca-SEVNLDAEFK(Dnp)-NH2 contains a highly fluorescent 7-methoxycoumarin group that is efficiently quenched by resonance energy transfer to the 2,4-dinitrophenyl group. It can be used to measure the activities of peptidases that are capable of cleaving an amide bond between the fluorescent group and the quencher group, causing an increase in fluorescence, such as can be used to measure the activity of BACE-1 .
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- HY-D1190
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RAR/RXR
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Others
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DC271 is a RAR agonist and synthetic retinoid that binds to the retinoid-binding site of cellular retinoic acid-binding protein II (CRBP-II). DC271 exhibits solvatochromic fluorescence properties: it produces intense blue-shifted emission in nonpolar environments and weak red-shifted emission in polar environments, and its severe fluorescence quenching in aqueous solutions can be reversed by embedding in the hydrophobic retinoid-binding protein pocket. DC271 enables direct detection of the binding between unlabeled compounds and related retinoid-binding proteins via fluorescence competition assays (Ex/Em = 355 nm/460 nm) .
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- HY-D1682
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Fluorescent Dye
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Others
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NFQ1 is a non-fluorescent quencher (absorption wavelength: 474 nm), and is used for a new type of One Sample Fluorescence Resonance Energy Transfer (OS-FRET) method. OS-FRET enable measurement of unquenched donor emission in the same sample. NFQ1 shows broad absorption spectrum ensuring its utility as a dark acceptor for many donors .
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- HY-D0929
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α-Naphthol Orange
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Fluorescent Dye
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Others
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Orange I (α-Naphthol Orange) is an anionic azo dye that can form a complex with Methylene blue (HY-14536) and cause fluorescence quenching. The equilibrium constant of the complex of Orange I and Methylene blue is 79900 mol -1·dm 3. Orange I can change the absorption spectrum of itself and Methylene blue .
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- HY-125273
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Fluorescent Dye
Phosphoglycerate Dehydrogenase (PHGDH)
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Others
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DNS-pE is a 3-phosphoglycerate dehydrogenase (PHGDH) inhibitor with a Ki of 7.4 μM. DNS-pE selectively and irreversibly covalently modifies endogenous PHGDH in live mammalian cells, its vinyl sulfone moiety acts as a fluorescence quencher that becomes highly fluorescent upon covalent modification of PHGDH. DNS-pE can be used as a fluorescent dye for live-cell imaging .
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- HY-P5485
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Bacterial
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Others
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Dabcyl-QALPETGEE-Edans is a synthetic peptide substrate for fluorescence resonance energy transfer (FRET) detection of Sortase A (SrtA) enzymatic activity. Dabcyl-QALPETGEE-Edans is labeled at both ends with the fluorescent group Edans (donor) and the quencher Dabcyl (acceptor), respectively. Dabcyl-QALPETGEE-Edans's central sequence contains a conserved motif specifically recognized by SrtA. Dabcyl-QALPETGEE-Edans demonstrates high sensitivity in vitro assays, enabling precise determination of the half-maximal inhibitory concentration of SrtA .
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- HY-N2452
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GLP Receptor
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Cardiovascular Disease
Infection
Metabolic Disease
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Cochinchinenin C is a GLP-1R agonist that binds to the extracellular domain of the receptor via hydrophobic interactions and hydrogen bonds, and promotes glucose-dependent insulin secretion from pancreatic β-cells. Cochinchinenin C also increases intracellular cAMP and ATP levels. At low concentrations, Cochinchinenin C binds to human serum albumin, alters its microenvironment, and induces dominant static fluorescence quenching. Cochinchinenin C shows almost no cytotoxicity to pancreatic β-cells, and exerts a synergistic effect with Loureirin A (HY-N1505) when binding to human serum albumin. Cochinchinenin C has been widely used in studies of type 2 diabetes, Helicobacter pylori infection, thrombotic diseases, and other conditions .
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- HY-W007671
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Endogenous Metabolite
Tyrosinase
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Others
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H-Tyr-OMe is an endogenous metabolite. H-Tyr-OMe quenches the fluorescence of carbon dots by oxidizing the phenolic hydroxyl group to quinone under the catalysis of Tyrosinase, and its amino and thiol binding ability can respond to changes in the concentration of biothiols .
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- HY-D1450
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S01448
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Fluorescent Dye
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Cancer
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IR-1048 is a nitroreductase (NTR)-responsive near-infrared fluorescence (NIR)/photoacoustic (PA) imaging probe and photothermal agent. IR-1048 is coupled with a nitroimidazole group to form IR-1048-MZ. IR-1048-MZ is catalytically reduced by NTR in a hypoxic environment, restoring strong near-infrared absorption and fluorescence emission (NIR II window), while activating the photothermal effect. IR-1048 relies on NTR-mediated electron transfer to relieve intramolecular fluorescence quenching, achieving specific imaging and photothermal ablation of tumor hypoxic areas. IR-1048 is mainly used for high-contrast NIR II/photoacoustic imaging and photothermal therapy research and tumor diagnosis of the tumor hypoxic microenvironment .
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- HY-W142692
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Biochemical Assay Reagents
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Others
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Dodecyl β-D-glucopyranoside is a non-ionic detergent and surfactant commonly used to solubilize and purify membrane proteins in biochemical research. Dodecyl β-D-glucopyranoside also interacts with bovine serum albumin (BSA) to quench its intrinsic fluorescence. The critical micelle concentration (CMC) of Dodecyl β-D-glucopyranoside (DG) and DG/BSA complex is 2.0 mM and 2.34 mM, respectively. Micelles can be formed in aqueous solutions above this concentration .
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- HY-W127832
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Fluorescent Dye
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Others
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Ru(dpp)3(PF6)2 is a complex containing metallic ruthenium (Ru) and is a chemiluminescent oxygen probe. [Ru(dpp)3] 2+ is a luminescent substance that can undergo metal-to-ligand charge transfer (MLCT), and fluorescence will appear during the transfer of Ru to the ligand. At the same time, the fluorescence of Ru(dpp)3(PF6)2 is effectively quenched by molecular oxygen, so it is widely used in biosensors, environmental monitoring, and materials science. The property of Ru(dpp)3(PF6)2, which oxidizes Ru 2+ to Ru 3+, has also been used to design and construct solid-state light-emitting electrochemical cells .
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- HY-173308
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Fluorescent Dye
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Others
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QSY-21 is a fluorescence quencher. QSY-21 possesses broad absorption in far red and NIR range, and can quench fluorescence of dyes that emit in this region. This is a carboxylic acid derivative. QSY-21 has intense absorption maximum at 661 nm, making it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications. It is a common quencher for Cyanine5, Cyanine5.5, AF 647, or other spectrally similar fluorescent dyes.
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- HY-P3123A
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Fluorescent Dye
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Others
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Dnp-RPLALWRS TFA is a fluorescent peptide substrate designed for human matrilysin (MMP-7). After enzymatic cleavage of Dnp-RPLALWRS TFA at the alanine-leucine bond, the release of the Dnp group alleviates fluorescence quenching, thereby enabling real-time quantitative analysis of MMP-7 activity by increasing tryptophan emission. Dnp-RPLALWRS TFA provides a sensitive and efficient detection method for kinetic studies and inhibitor screenin .
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- HY-P11302
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CHIKV
Virus Protease
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Infection
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DABCYL-RAGGYIFS-(E-EDANS)-NH2, an octapeptide, is a FRET-based substrate peptide of CHIKV nsP2protease with highly sensitivity. DABCYL-RAGGYIFS-(E-EDANS)-NH2 can be cleaved by the active CHIKV nsP2protease, separating fluorophore and quencher and resulting in an increase of fluorescence signal. DABCYL-RAGGYIFS-(E-EDANS)-NH2 can used for the determination of CHIKV nsP2protease activity .
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- HY-D2735
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Fluorescent Dye
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Others
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QSY-9-succinimidyl ester is a nonfluorescent acceptor molecule with a terminal NHS ester group. QSY-9-succinimidyl ester has a wide and intense quenching range from 500-600 nm that makes it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications in conjunction with fluorescent dyes at 500 nm to 600 nm. The NHS ester can be applied to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
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- HY-W112090
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PdTFPP; 5,10,15,20-Tetrakis(pentafluorophenyl)-21H,23H-porphine palladium(II)
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Fluorescent Dye
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Others
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Palladium meso-tetra(pentafluorophenyl)porphyrin (PdTFPP) derives from palladium(II), acting as a fluorescence-quenched optical probe and high-performance oxygen concentration sensor with outstanding photostability and antioxidant capacity. Palladium meso-tetra(pentafluorophenyl)porphyrin exhibits reduced luminescence intensity as dissolved oxygen concentration rises. Palladium meso-tetra(pentafluorophenyl)porphyrin can be applied for real-time monitoring of live-cell respiration, hypoxic tissue imaging, and nanofibrous organic semiconductors in photodetectors for ambient oxygen detection .
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- HY-D1663
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Fluorescent Dye
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Others
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APTAB is a fluorescent cationic membrane probe. APTAB locates the anthracene-labeled molecules incorporated into model membranes by fluorescence quenching .
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- HY-123630R
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FD&C RED NO. 40 (Standard); CI 16035 (Standard)
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Fluorescent Dye
Interleukin Related
5-HT Receptor
IFNAR
Reactive Oxygen Species (ROS)
Reference Standards
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Inflammation/Immunology
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Allura Red AC (Standard) is an analytical standard of Allura Red AC. This product is intended for research and analytical applications. Allura Red AC is a food colorant, appearing as a deep red water-soluble powder or granules, used in various applications such as beverages, syrups, candies, and cereals. Allura Red AC can statically quench the intrinsic fluorescence of HSA. Additionally, Allura Red AC is a 5-hydroxytryptamine (5-HT) pathway-associated pro-inflammatory agent, capable of exacerbating experimental colitis. Allura Red AC holds potential for research in inflammatory bowel disease (IBD), intestinal barrier function, and food additive safety .
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- HY-W012642A
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DNA Stain
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Others
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2-Aminopurine dihydrochloride is a fluorescent analog of guanosine. 2-Aminopurine dihydrochloride can be used as a fluorescence probe for nucleic acid structure and dynamics. Incorporating 2-Aminopurine dihydrochloride into DNA quenches its fluorescence .
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- HY-D2579
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Biochemical Assay Reagents
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Others
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Sulfo DBCO-UBQ-2 is a click chemistry reagent combining a dark quencher, UBQ-2, with a polyaromatic-azo backbone, offering no native emission. UBQ-2 effectively quenches fluorescence in the 560-670 nm range, ideal for qPCR probes and FRET applications with orange to far-red dyes .
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- HY-126965
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Biochemical Assay Reagents
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Others
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Lipid Y is a potent monosaccharide which contains two bromines per chain. lipid Y binds to a tryptophan residue in a membrane protein and then quenches the fluorescence of the tryptophan residue .
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- HY-163204
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P-glycoprotein
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Cancer
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RhQ-DMB is a potent inhibitor of P-gp. RhQ-DMB exhibits high affinity and inhibitory activity in yeast strains expressing CmABCB1 .
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- HY-118213
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Fluorescent Dye
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Others
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N-(2-Hydroxyethyl)-1,8-naphthalimide is a fluorescent probe for detecting nucleic acids and their precursors. The fluorescence of N-(2-Hydroxyethyl)-1,8-naphthalimide will be quenched by these molecules.
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- HY-W007671R
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Reference Standards
Endogenous Metabolite
Tyrosinase
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Others
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H-Tyr-OMe is an endogenous metabolite. H-Tyr-OMe quenches the fluorescence of carbon dots by oxidizing the phenolic hydroxyl group to quinone under the catalysis of Tyrosinase, and its amino and thiol binding ability can respond to changes in the concentration of biothiols .
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- HY-P4919
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Beta-secretase
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Others
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Mca-SEVNLDAEFK(Dnp) is a Beta-secretase 1 (BACE-1) peptide FRET substrate, containing the 'Swedish' Lys-Met/Asn-Leu mutation of the amyloid precursor protein (APP) β-secretase cleavage site. Cleavage at -Leu-Asp- of Mca-SEVNLDAEFK(Dnp) liberates the highly fluorescent 7-methoxycoumarin (Mca) fragment from the proximity quenching effect of the 2,4-dinitrophenyl (Dnp) internal quencher resulting in a large and easily detectable increase in fluorescence intensity.
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- HY-D2761
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Fluorescent Dye
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Others
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DY-680-NHS ester is an amine reactive hydrophilic fluorochrome. It can be conjugated to an antibody with higher D/P ratio without causing fluorescence quenching and conjugate precipitation, and it is widely used in applications including western blotting, microscopy, flow cytometry, and cell-based assays. The spectrum has an excitation of 690nm and emission at 709nm.
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- HY-P10922
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Cathepsin
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Others
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Cathepsin E substrate e is a substrate of Cathepsin E. Cathepsin E substrate e was designed in such a way that due to the close proximity of a Mca-donor and a Dnp-acceptor, a near complete intramolecular quenching effect was achieved in its intact state. After the proteolytic cleavage of the hydrophobic motif of the peptide substrate, both Mca and Dnp would be further apart, resulting in bright fluorescence .
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- HY-P3123
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Fluorescent Dye
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Others
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Dnp-RPLALWRS is a fluorescent peptide substrate designed for human matrilysin (MMP-7). After enzymatic cleavage of Dnp-RPLALWRS at the alanine-leucine bond, the release of the Dnp group alleviates fluorescence quenching, thereby enabling real-time quantitative analysis of MMP-7 activity by increasing tryptophan emission. Dnp-RPLALWRS provides a sensitive and efficient detection method for kinetic studies and inhibitor screenin .
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- HY-D2204
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Phosphatase
SHP1
Fluorescent Dye
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Cancer
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SHP1-IN-1 (compound 5p) is a fluorescent probe for the protein tyrosine phosphatase SHP1 containing the Src homology 2 domain. SHP1-IN-1 has SHP1 inhibitory activity, selectivity for Fe 3+ ions and good fluorescence properties. SHP1-IN-1 exhibits aggregation post-quenching (ACQ) effect, good interference immunity and low detection limit (5.55 μM) .
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- HY-172309
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Fluorescent Dye
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Others
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UBQ-3 NHS Ester is a fluroescent agent with a terminal NHS ester group. UBQ-3 NHS Ester has a wide quenching range from 620-730 nm, which makes the compound useful as an acceptor in fluorescence resonance energy transfer (FRET) applications in conjunction with far-red to near-IR emitting dyes such as Cy5, Cy5.5, Alexa Fluor 633, 647, 700. The NHS ester can be applied to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
|
-
- HY-D2924
-
|
|
Fluorescent Dye
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Others
|
|
CBG-549-QSY7 is a Dylight 549-labeled SNAP tag fluorescent probe (Ex/Em: 546 nm/580 nm), specially designed for non-washable fluorescence imaging applications. CBG-549-QSY7 employs an intramolecular FRET quenching mechanism: intramolecular fluorescence quenching occurs before binding to the SNAP tag, and upon binding, the quenching group is cleaved, releasing fluorescence. The background fluorescence of CBG-549-QSY7 is extremely low, and clear cell membrane images can be obtained after 5 minutes of incubation .
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-
- HY-D3206
-
|
|
Fluorescent Dye
|
Cancer
|
|
CuFS is a reaction-based fluorescent sensor for detecting Cu 2+ with zero background fluorescence. CuFS acts as a fluorescence quencher in the absence of Cu 2+ and as a fluorescence enhancer in the presence of Cu 2+. CuFS can be fabricated into test strips and applied to the detection of Cu 2+ in human cancer cells .
|
-
- HY-D3319
-
|
|
Biochemical Assay Reagents
MMP
|
Inflammation/Immunology
Cancer
|
|
BHQ‑3 carboxylic acid is an azo‑containing dark fluorescence quencher. BHQ‑3 carboxylic acid is conjugated to an MMP‑cleavable peptide and paired with a fluorophore to form an activatable probe for MMP activity detection in vitro. BHQ‑3 carboxylic acid shows maximal absorption in the 620 to 730 nm range. BHQ‑3 carboxylic acid–based fluorescent probes can be used in the research of arthritis and tumor‑related pathological processes. .
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-
- HY-203233
-
|
|
Fluorescent Dye
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Others
|
|
Rhodamine-DHPE is a fluorescently labeled phosphatidylethanolamine lipid that labels phospholipid bilayers. Rhodamine-DHPE serves as a fluorescence quenching substrate and membrane stain. The fluorescence lifetime of Rhodamine-DHPE decreases significantly in the presence of Cu 2+-PS complexes. Rhodamine-DHPE effectively stains the membranes of human red blood cells and mouse fibroblasts, and supports lifetime-resolved imaging via pump-probe fluorescence microscopy .
|
-
- HY-P11652
-
|
|
Biochemical Assay Reagents
|
Others
|
|
Cardiogen is a short biologically active peptide (Ala-Glu-Asp-Arg) that does not bind single-stranded deoxyribooligonucleotides, slightly quenches fluorescence of some double-stranded deoxyribooligonucleotides, strongly quenches fluorescence of methylated and unmethylated λ phage DNA-ethidium bromide complexes .
|
-
- HY-170466
-
|
1-Palmitoyl-2-stearoyl-(12-doxyl)-sn-glycero-3-phosphocholine
|
Biochemical Assay Reagents
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Others
|
|
16:0-12 Doxyl PC (1-Palmitoyl-2-stearoyl-(12-doxyl)-sn-glycero-3-phosphocholine) is a fluorescence quencher, and its nitrogen oxide is located downstream of the sn-2 chain. 16:0-12 Doxyl PC has a better fluorescence quenching effect onthe fluorophore is buried within the hydrocarbon interior of the bilayer .
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-
- HY-D3243
-
|
|
Fluorescent Dye
|
Others
|
|
Mn1 (M1) is a BODIPY-based Mn 2+-selective "turn-on" Fluorescent sensor and fluorescence modulator. In the absence of Mn 2+, Mn1 undergoes fluorescence quenching via photoinduced electron transfer; binding to Mn 2+ inhibits this mechanism, thereby generating a fluorescence "turn-on" response. Mn1 exhibits Mn 2+-specific cellular fluorescence response .
|
-
- HY-179760
-
|
|
Others
|
Metabolic Disease
|
|
16:0-7 Doxyl PC is a phosphocholine with a Doxyl group, which can be used as a membrane probe and a fluorescence quencher in the study of lipid bilayer structures, and is employed to study the membrane transport mediated by phosphatidylinositol translocase.
|
-
- HY-179883
-
|
|
Others
|
Metabolic Disease
|
|
16:0-5 Doxyl PC is a phosphocholine with a Doxyl group, which can be used as a membrane probe and a fluorescence quencher in the study of lipid bilayer structures, and is employed to study the membrane transport mediated by phosphatidylinositol translocase.
|
-
- HY-179879
-
|
|
Others
|
Metabolic Disease
|
|
16:0-16 Doxyl PC is a phosphocholine with a Doxyl group, which can be used as a membrane probe and a fluorescence quencher in the study of lipid bilayer structures, and is employed to study the membrane transport mediated by phosphatidylinositol translocase.
|
-
- HY-D2937
-
|
|
Fluorescent Dye
|
Others
|
|
BGQFL-9 is a quenched probe. BGQFL-9 can label SNAP tags with successfully labeling all three proteins (GG-SNAP, G132-SNAP, SNAP). BGQFL-9 shows almost no fluorescence .
|
-
- HY-D3269
-
|
|
Fluorescent Dye
|
Others
|
|
Mito-Cu (II) is a mitochondria-targeted fluorescent probe (Ex/Em = 370/450 nM). Mito-Cu (II) specifically accumulates in mitochondria of living cells and enables real-time detection of exogenous Cu 2+ within mitochondria of living cells. Mito-Cu (II) achieves "on-off-on" fluorescence switching through sequential exposure to Cu 2+ and ethylenediaminetetraacetic acid (EDTA) (HY-Y0682). Its fluorescence is quenched after forming a 1:1 complex with Cu 2+, and the fluorescence recovers when Cu 2+ is chelated by EDTA .
|
-
- HY-175163
-
|
|
Photosensitizer
|
Cancer
|
|
TPAPyN is a nitroreductase(NTR)-responsive type I photosensitizer. TPAPyN facilitates the imaging of hypoxic cancer cells and image-guided photodynamic therapy (PDT). TPAPyN does not emit fluorescence in the aqueous environment, but restores when NTR cleaves the nitrofuran quencher with aggregation-induced emission. TPAPyN can be used as a fluorescent probe for specific imaging of hypoxic cancer .
|
-
- HY-D3188
-
|
|
Fluorescent Dye
|
Cancer
|
|
gGlu-2OMe SiR600 is a γ-glutamyl transpeptidase (GGT) responsive fluorescent probe. gGlu-2OMe SiR600 can be converted into a highly fluorescent molecule via reaction with GGT, and its initial fluorescence is quenched through a photoinduced electron transfer (PeT) mechanism. gGlu-2OMe SiR600 exhibits fluorescence activation in malignant breast cancer and benign breast fibroadenoma tissues, enabling lesion visualization. gGlu-2OMe SiR600 can be used for research related to breast cancer and fibroadenoma .
|
-
- HY-D3224
-
|
|
Fluorescent Dye
|
Neurological Disease
|
|
HCP is a two-photon fluorescent probe capable of crossing the blood-brain barrier, which is specifically designed for real-time detection of hypochlorous acid (HClO/ClO -) produced by myeloperoxidase (MPO). Chlorination of the quinoline skeleton of HCP generates HCP-Cl, which eliminates intramolecular charge transfer (ICT) quenching and thereby produces fluorescence. HCP is suitable for in vivo dynamic imaging of HClO in the brains of epileptic mice and high-throughput screening of antiepileptic drugs (HCP-Cl: Ex/Em = 800 nm/495 nm) .
|
-
- HY-D3347
-
|
|
Fluorescent Dye
|
Cancer
|
|
DUPA-FITC is a fluorescent reagent targeting PSMA, which specifically binds to prostate cancer cells expressing PSMA without non-specific binding to normal blood cells. DUPA-FITC can label PSMA-expressing prostate cancer cells in whole blood, followed by internalization and trafficking to acidic intracellular endosomes, during which the fluorescence is quenched. When combined with flow cytometry and density gradient centrifugation enrichment, DUPA-FITC enables quantitative analysis of circulating tumor cells in peripheral blood samples from prostate cancer patients .
|
-
| Cat. No. |
Product Name |
Type |
-
- HY-43520
-
|
|
Fluorescent Dyes
|
|
BODIPY-FL is a green fluorescent dye that can be used to label probes or primers. BODIPY-FL fluorescence can be quenched after interacting with uniquely positioned guanine, making it useful for quantifying specific DNA or RNA molecules. The maximum absorption wavelength of BODIPY-FL is 505 nm, and the maximum emission wavelength is 513 nm .
|
-
- HY-W012642
-
|
|
Fluorescent Dyes
|
|
2-Aminopurine, a fluorescent analog of guanosine and adenosine, is a widely used fluorescence-decay-based probe of DNA structure. When 2-Aminopurine is inserted in anoligonucleotide, its fluorescence is highly quenched by stacking with the natural bases. 2-Aminopurine has been used to probe nucleic acid structure and dynamics .
|
-
- HY-D0720
-
|
NSC-151912; L-6868
|
Fluorescent Dyes
|
|
Lucigenin is a chemiluminescence probe. Lucigenin can be used to detect the production of endogenous superoxide anion radical (O 2-). Lucigenin is extremely sensitive to chloride ions, while it combined with chloride ions, the fluorescence will be quenched. Lucigenin also can be used as a chloride indicator. Ex/Em=455/505 nm .
|
-
- HY-W074143
-
|
|
Fluorescent Dyes
|
|
Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride ([Ru(dpp)3] 2+) is an electrochemiluminescent (ECL) probe and oxygen-sensitive sensor. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride can be used to modify electrode surfaces for the detection of sulfates (S2O8 2-) and oxalates, based on electrochemical reactions that generate excited-state species, releasing photons through irreversible redox reactions. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride utilizes the oxygen quenching of fluorescence mechanism, where fluorescence intensity reflects the metabolic rate of living microorganisms or oxygen levels within cells/tumors, allowing for real-time detection. Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride's main applications include microbial detection, antibacterial activity studies, and tumor microenvironment research .
|
-
- HY-15943
-
6-TAMRA
1 Publications Verification
6-Carboxytetramethylrhodamine
|
Fluorescent Dyes
|
|
6-TAMRA (6-Carboxytetramethylrhodamine) is a fluorescent dye. 6-TAMRA is often used in combination with 6-FAM (HY-66021) as an acceptor or fluorescence quencher for fluorescence resonance energy transfer (FRET) in biochemical studies such as potassium ion detection and ribonuclease activity assays .
|
-
- HY-123630
-
|
FD&C RED NO. 40; CI 16035
|
Fluorescent Dyes
|
|
Allura Red AC is a food colorant, appearing as a deep red water-soluble powder or granules, used in various applications such as beverages, syrups, candies, and cereals. Allura Red AC can statically quench the intrinsic fluorescence of HSA. Additionally, Allura Red AC is a 5-hydroxytryptamine (5-HT) pathway-associated pro-inflammatory agent, capable of exacerbating experimental colitis. Allura Red AC holds potential for research in inflammatory bowel disease (IBD), intestinal barrier function, and food additive safety .
|
-
- HY-W127703
-
|
|
Fluorescent Dyes
|
|
Octadecyl Rhodamine B chloride is an amphiphilic fluorescent probe with both membrane-binding ability and fluorescent properties, which easily forms aggregates in aqueous phase leading to self-quenching. Octadecyl Rhodamine B chloride can be used for cell membrane staining and further applied in membrane biology research. The maximum absorption/emission wavelengths of Octadecyl Rhodamine B chloride monomer in Triton X-100 are 565 nm/585 nm; the absorption peaks of aggregates in water are blue-shifted to 524 nm and 574 nm, with significantly quenched fluorescence .
|
-
- HY-D2365
-
|
|
Fluorescent Dyes
|
|
QSY 21 NHS is a dark quencher and an efficient energy transfer acceptor for far-red and near-infrared fluorescent probes. QSY 21 NHS operates at a wavelength range of 540-750 nm and is commonly used in FRET applications. QSY 21 NHS does not fluoresce under normal conditions. The NHS ester can be used to label primary amines (R-NH2) of proteins, amine-modified oligonucleotides and other amine-containing molecules. QSY 21 NHS can be conjugated with dendritic poly-L-lysine to achieve intramolecular quenching of Cy5 fluorescence .
|
-
- HY-D1030
-
|
|
Fluorescent Dyes
|
|
Fluorescein Biotin is a fluorescent modulator with avidin and streptavidin binding activity. Fluorescein Biotin binds to the biotin-binding sites of avidin and streptavidin, and this binding induces significant fluorescence quenching .
|
-
- HY-W923198
-
|
Methacryloyloxy fluorescein
|
Fluorescent Dyes
|
|
Fluorescein O-methacrylate (Methacryloyloxy fluorescein) is a pH-responsive fluorescent monomeric dye. Fluorescein O-methacrylate exhibits pH-responsive fluorescence properties: its fluorescence is activated under alkaline conditions and quenched under neutral or acidic conditions; reversible switching of fluorescence is achievable by adjusting the pH of the solution. Fluorescein O-methacrylate can be used as a monomer for the synthesis of amphiphilic fluorescein polymers. These polymers can self-assemble into stable polymer nanoparticles with enhanced aqueous-phase fluorescence, and also enable the conjugation of nanoparticles with amine-containing biomolecules to support sensitive optical detection of biomarkers (Ex/Em = 490/520 nm) .
|
-
- HY-P3749
-
|
|
Fluorescent Dyes
|
|
Mca-(ala7,lys(dnp)9)-bradykinin is a sensitive fluorogenic substrate for ECE-1 (endothelin-converting enzyme-1). The incorporation of a (7-methoxycoumarin-4-yl)acetyl (Mca) fluorescent group and a 2,4-dinitrophenyl (Dnp) quenching group has resulted in a large fluorescence increase upon substrate cleavage .
|
-
- HY-W127716
-
|
|
Fluorescent Dyes
|
|
Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 is a potent ruthenium-based dye. Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 can bu used as an effective quencher of quantum dots (QDs) fluorescence and the capture probe of virus antigen EV71. Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2 can be used sensitive electrogenerated chemiluminescence (ECL) labels for detection of matrix metalloproteinases (MMPs) .
|
-
- HY-D1555
-
|
Cy7 DBCO
|
Fluorescent Dyes
|
|
Cyanine7 DBCO (Cy7 DBCO) is a near-infrared fluorescent dye and an efficient bio-orthogonal quencher. Cyanine7 DBCO is formed by covalent connection of the near-infrared fluorescent dye Cy7 and the dibenzocyclooctyne (DBCO) functional group. After reacting with N3-Cy5-COOH, the fluorescence of Cy5 decreases by 90% within 90 minutes, and rapid signal attenuation can be observed within 2-5 minutes. Cyanine7 DBCO can be used for the study of deep tissue imaging and receptor-targeted therapeutic strategies .
|
-
- HY-D2864
-
|
|
Fluorescent Dyes
|
|
Aza-CyBz is a selective NaCl-responsive fluorescent probe. Aza-CyBz visualizes plant salt stress by forming ordered aggregates with NaCl, leading to near-infrared fluorescence quenching. Aza-CyBz acts via electrostatic interaction between the cationic cyanine dye and NaCl to form J-aggregates, causing fluorescence quenching with a detection limit of 170 μM .
|
-
- HY-42984
-
|
|
Fluorescent Dyes
|
|
BHQ-2 NHS is a dark quencher with no native emission due to the polyaromatic-azo backbone and a terminal NHS ester. UBHQ-2 NHS has a wide and intense quenching range from 560-670 nm, which makes it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications in conjunction with orange to far-red emitting dyes. The NHS ester can be applied to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
|
-
- HY-D0142
-
|
|
Fluorescent Dyes
|
|
Pyrene-1,3,6,8-tetrasulfonic acid tetrasodium is a fluorescent dye and pH indicator, also as a ligand of multifunctional metal-organic framework. Pyrene-1,3,6,8-tetrasulfonic acid tetrasodium has been used to detect CO2 release. Pyrene-1,3,6,8-tetrasulfonic acid tetrasodium acts as a water-soluble fluorescent dye for fluorescence quenching assays monitoring gramicidin ion-channel activity .
|
-
- HY-D0916
-
|
YOYO 1; YOYO1
|
Fluorescent Dyes
|
|
Thiazole orange dimer YOYO 1 (YOYO 1) is a cell-impermeable cyanine dimer with no inherent fluorescence, and its fluorescence intensity increases significantly upon binding to double-stranded DNA (dsDNA) . Thiazole orange dimer YOYO 1 can serve as a nuclear counterstain or a dead cell indicator (Ex/Em = 505/512 nm).
|
-
- HY-D1190
-
|
|
Fluorescent Dyes
|
|
DC271 is a RAR agonist and synthetic retinoid that binds to the retinoid-binding site of cellular retinoic acid-binding protein II (CRBP-II). DC271 exhibits solvatochromic fluorescence properties: it produces intense blue-shifted emission in nonpolar environments and weak red-shifted emission in polar environments, and its severe fluorescence quenching in aqueous solutions can be reversed by embedding in the hydrophobic retinoid-binding protein pocket. DC271 enables direct detection of the binding between unlabeled compounds and related retinoid-binding proteins via fluorescence competition assays (Ex/Em = 355 nm/460 nm) .
|
-
- HY-D1682
-
|
|
Fluorescent Dyes
|
|
NFQ1 is a non-fluorescent quencher (absorption wavelength: 474 nm), and is used for a new type of One Sample Fluorescence Resonance Energy Transfer (OS-FRET) method. OS-FRET enable measurement of unquenched donor emission in the same sample. NFQ1 shows broad absorption spectrum ensuring its utility as a dark acceptor for many donors .
|
-
- HY-173308
-
|
|
Fluorescent Dyes
|
|
QSY-21 is a fluorescence quencher. QSY-21 possesses broad absorption in far red and NIR range, and can quench fluorescence of dyes that emit in this region. This is a carboxylic acid derivative. QSY-21 has intense absorption maximum at 661 nm, making it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications. It is a common quencher for Cyanine5, Cyanine5.5, AF 647, or other spectrally similar fluorescent dyes.
|
-
- HY-D2735
-
|
|
Fluorescent Dyes
|
|
QSY-9-succinimidyl ester is a nonfluorescent acceptor molecule with a terminal NHS ester group. QSY-9-succinimidyl ester has a wide and intense quenching range from 500-600 nm that makes it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications in conjunction with fluorescent dyes at 500 nm to 600 nm. The NHS ester can be applied to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
|
-
- HY-123630R
-
|
FD&C RED NO. 40 (Standard); CI 16035 (Standard)
|
Fluorescent Dyes
|
|
Allura Red AC (Standard) is an analytical standard of Allura Red AC. This product is intended for research and analytical applications. Allura Red AC is a food colorant, appearing as a deep red water-soluble powder or granules, used in various applications such as beverages, syrups, candies, and cereals. Allura Red AC can statically quench the intrinsic fluorescence of HSA. Additionally, Allura Red AC is a 5-hydroxytryptamine (5-HT) pathway-associated pro-inflammatory agent, capable of exacerbating experimental colitis. Allura Red AC holds potential for research in inflammatory bowel disease (IBD), intestinal barrier function, and food additive safety .
|
-
- HY-W012642A
-
|
|
Fluorescent Dyes
|
|
2-Aminopurine dihydrochloride is a fluorescent analog of guanosine. 2-Aminopurine dihydrochloride can be used as a fluorescence probe for nucleic acid structure and dynamics. Incorporating 2-Aminopurine dihydrochloride into DNA quenches its fluorescence .
|
-
- HY-D2579
-
|
|
Fluorescent Dyes
|
|
Sulfo DBCO-UBQ-2 is a click chemistry reagent combining a dark quencher, UBQ-2, with a polyaromatic-azo backbone, offering no native emission. UBQ-2 effectively quenches fluorescence in the 560-670 nm range, ideal for qPCR probes and FRET applications with orange to far-red dyes .
|
-
- HY-118213
-
|
|
Fluorescent Dyes
|
|
N-(2-Hydroxyethyl)-1,8-naphthalimide is a fluorescent probe for detecting nucleic acids and their precursors. The fluorescence of N-(2-Hydroxyethyl)-1,8-naphthalimide will be quenched by these molecules.
|
-
- HY-D2761
-
|
|
Fluorescent Dyes
|
|
DY-680-NHS ester is an amine reactive hydrophilic fluorochrome. It can be conjugated to an antibody with higher D/P ratio without causing fluorescence quenching and conjugate precipitation, and it is widely used in applications including western blotting, microscopy, flow cytometry, and cell-based assays. The spectrum has an excitation of 690nm and emission at 709nm.
|
-
- HY-D2204
-
|
|
Fluorescent Dyes
|
|
SHP1-IN-1 (compound 5p) is a fluorescent probe for the protein tyrosine phosphatase SHP1 containing the Src homology 2 domain. SHP1-IN-1 has SHP1 inhibitory activity, selectivity for Fe 3+ ions and good fluorescence properties. SHP1-IN-1 exhibits aggregation post-quenching (ACQ) effect, good interference immunity and low detection limit (5.55 μM) .
|
-
- HY-D2924
-
|
|
Fluorescent Dyes
|
|
CBG-549-QSY7 is a Dylight 549-labeled SNAP tag fluorescent probe (Ex/Em: 546 nm/580 nm), specially designed for non-washable fluorescence imaging applications. CBG-549-QSY7 employs an intramolecular FRET quenching mechanism: intramolecular fluorescence quenching occurs before binding to the SNAP tag, and upon binding, the quenching group is cleaved, releasing fluorescence. The background fluorescence of CBG-549-QSY7 is extremely low, and clear cell membrane images can be obtained after 5 minutes of incubation .
|
-
- HY-D3206
-
|
|
Fluorescent Dyes
|
|
CuFS is a reaction-based fluorescent sensor for detecting Cu 2+ with zero background fluorescence. CuFS acts as a fluorescence quencher in the absence of Cu 2+ and as a fluorescence enhancer in the presence of Cu 2+. CuFS can be fabricated into test strips and applied to the detection of Cu 2+ in human cancer cells .
|
-
- HY-D3319
-
|
|
Fluorescent Dyes
|
|
BHQ‑3 carboxylic acid is an azo‑containing dark fluorescence quencher. BHQ‑3 carboxylic acid is conjugated to an MMP‑cleavable peptide and paired with a fluorophore to form an activatable probe for MMP activity detection in vitro. BHQ‑3 carboxylic acid shows maximal absorption in the 620 to 730 nm range. BHQ‑3 carboxylic acid–based fluorescent probes can be used in the research of arthritis and tumor‑related pathological processes. .
|
-
- HY-203233
-
|
|
Fluorescent Dyes
|
|
Rhodamine-DHPE is a fluorescently labeled phosphatidylethanolamine lipid that labels phospholipid bilayers. Rhodamine-DHPE serves as a fluorescence quenching substrate and membrane stain. The fluorescence lifetime of Rhodamine-DHPE decreases significantly in the presence of Cu 2+-PS complexes. Rhodamine-DHPE effectively stains the membranes of human red blood cells and mouse fibroblasts, and supports lifetime-resolved imaging via pump-probe fluorescence microscopy .
|
-
- HY-D3243
-
|
|
Fluorescent Dyes
|
|
Mn1 (M1) is a BODIPY-based Mn 2+-selective "turn-on" Fluorescent sensor and fluorescence modulator. In the absence of Mn 2+, Mn1 undergoes fluorescence quenching via photoinduced electron transfer; binding to Mn 2+ inhibits this mechanism, thereby generating a fluorescence "turn-on" response. Mn1 exhibits Mn 2+-specific cellular fluorescence response .
|
-
- HY-D2937
-
|
|
Fluorescent Dyes
|
|
BGQFL-9 is a quenched probe. BGQFL-9 can label SNAP tags with successfully labeling all three proteins (GG-SNAP, G132-SNAP, SNAP). BGQFL-9 shows almost no fluorescence .
|
-
- HY-D3269
-
|
|
Fluorescent Dyes
|
|
Mito-Cu (II) is a mitochondria-targeted fluorescent probe (Ex/Em = 370/450 nM). Mito-Cu (II) specifically accumulates in mitochondria of living cells and enables real-time detection of exogenous Cu 2+ within mitochondria of living cells. Mito-Cu (II) achieves "on-off-on" fluorescence switching through sequential exposure to Cu 2+ and ethylenediaminetetraacetic acid (EDTA) (HY-Y0682). Its fluorescence is quenched after forming a 1:1 complex with Cu 2+, and the fluorescence recovers when Cu 2+ is chelated by EDTA .
|
-
- HY-D3188
-
|
|
Fluorescent Dyes
|
|
gGlu-2OMe SiR600 is a γ-glutamyl transpeptidase (GGT) responsive fluorescent probe. gGlu-2OMe SiR600 can be converted into a highly fluorescent molecule via reaction with GGT, and its initial fluorescence is quenched through a photoinduced electron transfer (PeT) mechanism. gGlu-2OMe SiR600 exhibits fluorescence activation in malignant breast cancer and benign breast fibroadenoma tissues, enabling lesion visualization. gGlu-2OMe SiR600 can be used for research related to breast cancer and fibroadenoma .
|
-
- HY-D3224
-
|
|
Fluorescent Dyes
|
|
HCP is a two-photon fluorescent probe capable of crossing the blood-brain barrier, which is specifically designed for real-time detection of hypochlorous acid (HClO/ClO -) produced by myeloperoxidase (MPO). Chlorination of the quinoline skeleton of HCP generates HCP-Cl, which eliminates intramolecular charge transfer (ICT) quenching and thereby produces fluorescence. HCP is suitable for in vivo dynamic imaging of HClO in the brains of epileptic mice and high-throughput screening of antiepileptic drugs (HCP-Cl: Ex/Em = 800 nm/495 nm) .
|
-
- HY-D3347
-
|
|
Fluorescent Dyes
|
|
DUPA-FITC is a fluorescent reagent targeting PSMA, which specifically binds to prostate cancer cells expressing PSMA without non-specific binding to normal blood cells. DUPA-FITC can label PSMA-expressing prostate cancer cells in whole blood, followed by internalization and trafficking to acidic intracellular endosomes, during which the fluorescence is quenched. When combined with flow cytometry and density gradient centrifugation enrichment, DUPA-FITC enables quantitative analysis of circulating tumor cells in peripheral blood samples from prostate cancer patients .
|
| Cat. No. |
Product Name |
Type |
-
- HY-W007359
-
-
- HY-W142692
-
|
|
Biochemical Assay Reagents
|
|
Dodecyl β-D-glucopyranoside is a non-ionic detergent and surfactant commonly used to solubilize and purify membrane proteins in biochemical research. Dodecyl β-D-glucopyranoside also interacts with bovine serum albumin (BSA) to quench its intrinsic fluorescence. The critical micelle concentration (CMC) of Dodecyl β-D-glucopyranoside (DG) and DG/BSA complex is 2.0 mM and 2.34 mM, respectively. Micelles can be formed in aqueous solutions above this concentration .
|
-
- HY-W127832
-
|
|
Biochemical Assay Reagents
|
|
Ru(dpp)3(PF6)2 is a complex containing metallic ruthenium (Ru) and is a chemiluminescent oxygen probe. [Ru(dpp)3] 2+ is a luminescent substance that can undergo metal-to-ligand charge transfer (MLCT), and fluorescence will appear during the transfer of Ru to the ligand. At the same time, the fluorescence of Ru(dpp)3(PF6)2 is effectively quenched by molecular oxygen, so it is widely used in biosensors, environmental monitoring, and materials science. The property of Ru(dpp)3(PF6)2, which oxidizes Ru 2+ to Ru 3+, has also been used to design and construct solid-state light-emitting electrochemical cells .
|
-
- HY-170466
-
|
1-Palmitoyl-2-stearoyl-(12-doxyl)-sn-glycero-3-phosphocholine
|
Biochemical Assay Reagents
|
|
16:0-12 Doxyl PC (1-Palmitoyl-2-stearoyl-(12-doxyl)-sn-glycero-3-phosphocholine) is a fluorescence quencher, and its nitrogen oxide is located downstream of the sn-2 chain. 16:0-12 Doxyl PC has a better fluorescence quenching effect onthe fluorophore is buried within the hydrocarbon interior of the bilayer .
|
| Cat. No. |
Product Name |
Target |
Research Area |
-
- HY-P3749
-
|
|
Fluorescent Dye
|
Others
|
|
Mca-(ala7,lys(dnp)9)-bradykinin is a sensitive fluorogenic substrate for ECE-1 (endothelin-converting enzyme-1). The incorporation of a (7-methoxycoumarin-4-yl)acetyl (Mca) fluorescent group and a 2,4-dinitrophenyl (Dnp) quenching group has resulted in a large fluorescence increase upon substrate cleavage .
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- HY-P4920
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Fluorescent Dye
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Others
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Mca-SEVNLDAEFK(Dnp)-NH2 contains a highly fluorescent 7-methoxycoumarin group that is efficiently quenched by resonance energy transfer to the 2,4-dinitrophenyl group. It can be used to measure the activities of peptidases that are capable of cleaving an amide bond between the fluorescent group and the quencher group, causing an increase in fluorescence, such as can be used to measure the activity of BACE-1 .
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- HY-P5485
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Bacterial
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Others
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Dabcyl-QALPETGEE-Edans is a synthetic peptide substrate for fluorescence resonance energy transfer (FRET) detection of Sortase A (SrtA) enzymatic activity. Dabcyl-QALPETGEE-Edans is labeled at both ends with the fluorescent group Edans (donor) and the quencher Dabcyl (acceptor), respectively. Dabcyl-QALPETGEE-Edans's central sequence contains a conserved motif specifically recognized by SrtA. Dabcyl-QALPETGEE-Edans demonstrates high sensitivity in vitro assays, enabling precise determination of the half-maximal inhibitory concentration of SrtA .
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- HY-P10461
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Peptides
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Others
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Abz-Val-Ala-Asp-Nva-Arg-Asp-Arg-Gln-EDDnp is a fluorescence-quenched peptide substrate for human proteinase 3 (kcat/Km = 1,570 mM -1s -1), and can be used for detection of proteinase 3 (PR3) activity .
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- HY-P3123A
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Fluorescent Dye
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Others
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Dnp-RPLALWRS TFA is a fluorescent peptide substrate designed for human matrilysin (MMP-7). After enzymatic cleavage of Dnp-RPLALWRS TFA at the alanine-leucine bond, the release of the Dnp group alleviates fluorescence quenching, thereby enabling real-time quantitative analysis of MMP-7 activity by increasing tryptophan emission. Dnp-RPLALWRS TFA provides a sensitive and efficient detection method for kinetic studies and inhibitor screenin .
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- HY-P11302
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CHIKV
Virus Protease
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Infection
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DABCYL-RAGGYIFS-(E-EDANS)-NH2, an octapeptide, is a FRET-based substrate peptide of CHIKV nsP2protease with highly sensitivity. DABCYL-RAGGYIFS-(E-EDANS)-NH2 can be cleaved by the active CHIKV nsP2protease, separating fluorophore and quencher and resulting in an increase of fluorescence signal. DABCYL-RAGGYIFS-(E-EDANS)-NH2 can used for the determination of CHIKV nsP2protease activity .
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- HY-P4919
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Beta-secretase
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Others
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Mca-SEVNLDAEFK(Dnp) is a Beta-secretase 1 (BACE-1) peptide FRET substrate, containing the 'Swedish' Lys-Met/Asn-Leu mutation of the amyloid precursor protein (APP) β-secretase cleavage site. Cleavage at -Leu-Asp- of Mca-SEVNLDAEFK(Dnp) liberates the highly fluorescent 7-methoxycoumarin (Mca) fragment from the proximity quenching effect of the 2,4-dinitrophenyl (Dnp) internal quencher resulting in a large and easily detectable increase in fluorescence intensity.
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- HY-P10922
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Cathepsin
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Others
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Cathepsin E substrate e is a substrate of Cathepsin E. Cathepsin E substrate e was designed in such a way that due to the close proximity of a Mca-donor and a Dnp-acceptor, a near complete intramolecular quenching effect was achieved in its intact state. After the proteolytic cleavage of the hydrophobic motif of the peptide substrate, both Mca and Dnp would be further apart, resulting in bright fluorescence .
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- HY-P3123
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Fluorescent Dye
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Others
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Dnp-RPLALWRS is a fluorescent peptide substrate designed for human matrilysin (MMP-7). After enzymatic cleavage of Dnp-RPLALWRS at the alanine-leucine bond, the release of the Dnp group alleviates fluorescence quenching, thereby enabling real-time quantitative analysis of MMP-7 activity by increasing tryptophan emission. Dnp-RPLALWRS provides a sensitive and efficient detection method for kinetic studies and inhibitor screenin .
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- HY-P11652
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Biochemical Assay Reagents
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Others
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Cardiogen is a short biologically active peptide (Ala-Glu-Asp-Arg) that does not bind single-stranded deoxyribooligonucleotides, slightly quenches fluorescence of some double-stranded deoxyribooligonucleotides, strongly quenches fluorescence of methylated and unmethylated λ phage DNA-ethidium bromide complexes .
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- HY-K1042
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MCE AntiFade Mounting Medium can slow the fluorescence quenching of various common fluorescent dyes with simple operation and good anti-fluorescence quenching effect.
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- HY-K1048
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AntiFade Reagent (with DAPI) is used to slow the fluorescence quenching. The 5 mL is defined as the base specification. All larger sizes correspond to incremental volumes of this base.
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| Cat. No. |
Product Name |
Category |
Target |
Chemical Structure |
| Cat. No. |
Product Name |
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Classification |
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- HY-D1555
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Cy7 DBCO
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DBCO
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Cyanine7 DBCO (Cy7 DBCO) is a near-infrared fluorescent dye and an efficient bio-orthogonal quencher. Cyanine7 DBCO is formed by covalent connection of the near-infrared fluorescent dye Cy7 and the dibenzocyclooctyne (DBCO) functional group. After reacting with N3-Cy5-COOH, the fluorescence of Cy5 decreases by 90% within 90 minutes, and rapid signal attenuation can be observed within 2-5 minutes. Cyanine7 DBCO can be used for the study of deep tissue imaging and receptor-targeted therapeutic strategies .
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- HY-D2579
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DBCO
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Sulfo DBCO-UBQ-2 is a click chemistry reagent combining a dark quencher, UBQ-2, with a polyaromatic-azo backbone, offering no native emission. UBQ-2 effectively quenches fluorescence in the 560-670 nm range, ideal for qPCR probes and FRET applications with orange to far-red dyes .
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| Cat. No. |
Product Name |
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Classification |
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- HY-162543
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18:1 Lissamine rhodamine PE
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Phospholipids
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18:1 Liss Rhod (18:1 Lissamine rhodamine) PE is a fluorescent phospholipid and fluorescent probe.18:1 Liss Rhod PE admixes into phospholipid inks for large-scale monitoring of dip-pen nanolithography-generated lithographic structures via fluorescence microscopy.18:1 Liss Rhod PE undergoes phase separation or self-quenching under certain conditions in thin lipid membrane stacks .
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- HY-W013195
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Nucleoside Analogs
Adenosine
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8-Bromoadenosine is an adenosine analog. Adenosine analogs mostly act as smooth muscle vasodilators and have also been shown to inhibit cancer progression. 8-Bromoadenosine can quench the intrinsic fluorescence of human serum albumin (HSA) through static quenching procedure. 8-Bromoadenosine can be used to synthesize adenosine phosphate, such as Acadesine (HY-13417), Clofarabine (HY-A0005), Fludarabine phosphate (HY-B0028) and Vidarabine (HY-B0277) .
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