2. Signaling Pathways
  3. Others
  4. Fluorescent Dye

Fluorescent Dye

Fluorescence is a phenomenon of photoluminescence in luminescence. When an atom is irradiated by light, some electrons around the nucleus jump from their original orbitals to higher energy orbitals under the influence of light energy, i.e., from the ground state to the first or second excited single-line state, etc. Due to the instability of the first or second excited singlet state, the electron returns from the excited singlet state to the ground state accompanied by released energy, resulting in fluorescence.

Fluorescent dyes can be covalently bound or physically adsorbed in the structure of the substance. The fluorescence properties allow for the characterization, localization and quantitative analysis of the labeled object. Fluorescent dyes have shown great potential for the detection of proteins, nucleic acids, cells, and immunoassays, attributed to the advantages in non-radioactive contamination, simple experimental operation and easy observation.

Fluorescent dyes have penetrated many fields such as pharmacology, physiology, environmental science, and information science, as well as functional studies of proteins and drug screening.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-155500
    Digoxigenin NHS ester
    		Chemical 99.00%
    Digoxigenin NHS ester is an activated ester which readily reacts with amino groups under mild conditions, attaching the Digoxigenin (HY-B1025) moiety to proteins or amino-. Digoxigenin NHS ester can be used to label proteins and oligonucleotides.
    Digoxigenin NHS ester
  • HY-W127716
    Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2
    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).
    Ru(bpy)2(mcbpy-O-Su-ester)(PF6)2
  • HY-W039938
    4-Nitrophenyl β-D-xylopyranoside
    		99.57%
    4-Nitrophenyl β-D-xylopyranoside is a chromogenic β-xylosidase substrate. 4-Nitrophenyl β-D-xylopyranoside can be used to test β-xylosidase activity.
    4-Nitrophenyl β-D-xylopyranoside
  • HY-D2869
    Ac-H-FluNox
    		99.88%
    Ac-H-FluNox is an acetylated cell-compatible prodrug of H-FluNox (HY-D2339). Ac-H-FluNox undergoes intracellular hydrolysis of its acetyl group by esterases to generate H-FluNox, which then undergoes a deoxygenation reaction with labile heme to form a fluorescent product. Ac-H-FluNox detects fluctuations of labile heme in living cells, acute labile heme release upon nitric oxide stimulation, and accumulation of labile heme following inhibition of heme export proteins.
    Ac-H-FluNox
  • HY-125815
    Reactive Blue 4
    Reactive Blue 4 is an anthraquinone dye used extensively in the textile industry. Reactive Blue 4 is a single colorimetric chemosensor for sequential determination of multiple analytes with different optical responses in aqueous media.
    Reactive Blue 4
  • HY-D1198
    Eosin B
    Eosin B (Acid Red 91) is a multifunctional dye. Dyes are important tools in biological experiments. They can help researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology and monitor microorganisms. Their applications range from basic scientific research to clinical A wide range of diagnostics. Dyes are also widely used in traditional fields such as textile dyeing, as well as in emerging fields such as functional textile processing, food pigments and dye-sensitized solar cells.
    Eosin B
  • HY-D0943
    Nuclear Fast Red
    Nuclear Fast Red, an anthraquinone dye, is commonly used in conjunction with an excess of aluminum ions as a red nuclear counterstain. Nuclear fast red has been used as a histochemical and colorimetric reagent for calcium. Nuclear fast red as highly sensitive "off/on" fluorescent probe for detecting guanine.
    Nuclear Fast Red
  • HY-DY2002
    X-GAL (solution)
    X-GAL (BCIG) (solution) is a widely used chromogenic β-galactosidase substrate. X-GAL is a colorless compound until cleaved by β-galactosidase, at which point X-GAL turns to an insoluble and detectable blue compound, making X-GAL particularly useful in techniques such as blue-white screening for cloning in bacteria. X-GAL can also be used for detection of β-galactosidase activity.
    Solvent and Concentration: DMF: 20 mg/mL
    X-GAL (solution)
  • HY-N0729F
    BODIPY-Linoleic acid
    BODIPY-Linoleic acid is a conjugate of the BODIPY fluorophore and Linoleic acid (HY-N0729) (C18:2) and is a lipid metabolism probe.
    BODIPY-Linoleic acid
  • HY-112841
    PTZ-343
    		99.58%
    PTZ-343 is a potent enhancer of Luminol (HY-15922). PTZ-343 greatly increases the light output of the peroxidase-catalyzed luminol chemiluminescent oxidation reaction (>80%).
    PTZ-343
  • HY-168929
    SHP1 activator 1
    		99.38%
    SHP1 activator 1 (Compound 3n) is an activator for src homology-2 domain-containing protein tyrosine phosphatase 1(SHP1) with an EC50 of 17.66 μM. SHP1 activator 1 inhibits the proliferation of ABC-DLBCL cells, induces apoptosis by inhibiting STAT3 signaling pathway. SHP1 activator 1 emitts blue and green fluorescence signalis in MDA-MB-231 cell, and can be used as a cell imaging agent.
    SHP1 activator 1
  • HY-D1565
    Cy7.5 maleimide
    Cy7.5 maleimide is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
    Cy7.5 maleimide
  • HY-D1353
    LipidGreen 2
    		99.00%
    LipidGreen 2 is a second generation small molecule probe for lipid imaging. LipidGreen 2 has a better fluorescence signal compared with the previous LipidGreen, and selectively stains neutral lipids in cells and fat deposits in live zebrafish.
    LipidGreen 2
  • HY-137873
    4-Methylumbelliferyl-α-D-Glucopyranoside
    		99.99%
    4-Methylumbelliferyl-α-D-Glucopyranoside (4-Methylumbelliferyl-α-D-Glucose) is a fluorescent substrate for α-glucosidase, which releases the fluorescent moiety 4-methylumbelliferyl (4-MU) upon cleavage. 4-MU has pH-dependent fluorescence excitation activity, with excitation wavelengths of 320 nm at low pH (1.97-6.72) and 360 nm at high pH (7.12-10.3), respectively. The emission wavelength of 4-Methylumbelliferyl-α-D-Glucopyranoside increases with decreasing pH, ranging from 445-455 nm. 4-Methylumbelliferyl-α-D-Glucopyranoside can be used as a biomarker for Fabry and Pompe diseases to quantify α-glucosidase activity in infant blood spot samples.
    4-Methylumbelliferyl-α-D-Glucopyranoside
  • HY-P4360
    Suc-Ala-Phe-Lys-AMC
    		99.75%
    Suc-Ala-Phe-Lys-AMC is a highly sensitive fluorogenic substrate for plasmin. Suc-Ala-Phe-Lys-AMC is also used for assaying gingipain K.
    Suc-Ala-Phe-Lys-AMC
  • HY-D1156A
    HKSOX-1m (5/6-mixture) hydrobromide
    		99.55%
    HKSOX-1m (5/6-mixture) hydrobromide is a O2 fluorescent probe for mitochondria-targeting (Ex/Em=509/534nm; green), exhibiting excellent selectivity and sensitivity toward O2 over a broad range of pH, strong oxidants, and abundant reductants found in cells.
    HKSOX-1m (5/6-mixture) hydrobromide
  • HY-123749
    Tetramethylrhodamine-5-iodoacetamide
    Tetramethylrhodamine-5-iodoacetamide (5-TMRIA) is a thiol-selective reactive dye that is used to non-specifically label proteins via the cysteine residues. Tetramethylrhodamine-5-iodoacetamide (5-TMRIA) can be used to covalently label DNA fragments.
    Tetramethylrhodamine-5-iodoacetamide
  • HY-N0324F
    Cholic acid-Biotin
    Cholic acid-Biotin is a biotin-labeled Cholic acid (HY-N0324). Cholic acid is a major primary bile acid produced in the liver and usually conjugated with glycine or taurine. It facilitates fat absorption and cholesterol excretion. Cholic acid has orally activity.
    Cholic acid-Biotin
  • HY-117468
    Lissamine rhodamine B
    		98.00%
    Lissamine rhodamine B is a red-fluorescent dye, it is a derivative of rhodamine. Lissamine rhodamine B can be used as a fluorescent probe to develop competitive aptamer fluorescence anisotropy/polarization (FA/FP) assays.
    Lissamine rhodamine B
  • HY-D2381
    AF 488 maleimide
    AF 488 maleimide is a thiol-reactive dye used to label SH groups of proteins, which can attach the AF 488 fluorophore to cysteine residue-containing proteins and peptides as well as other thiolated molecules. AF 488 maleimide enables real-time visualization of dynamic pilus extension and retraction in live bacterial cells via epifluorescence microscopy (Ex/Em = 470/520 nm).
    AF 488 maleimide
Cat. No. Product Name / Synonyms Application Reactivity