Functional Group Type

Fluorescein-5-maleimide (N-(5-Fluoresceinyl)maleimide) is a fluorescent dye. Fluorescein-5-maleimide can be used to detect the redox state of thiols in eukaryotic cells. Fluorescein-5-maleimide can label peptides and is used to detect negatively charged nanoparticles. Fluorescein-5-maleimide can also label actin to explore its interaction with cardiac myosin-binding protein C (cMyBP-C), which helps in developing small molecule modulators for heart failure. Fluorescein-5-maleimide can screen mutant proteins that contain cysteine residues. The excitation wavelength of Fluorescein-5-maleimide is 494 nm, and the emission wavelength is 519 nm.

Texas Red (Sulforhodamine 101) is an amphoteric rhodamine red fluorescent dye (excitation/emission: 586/605 nm). Texas Red is used extensively for investigating neuronal morphology and acts as acell type-selective fluorescent marker of astrocytes bothin vivoand in slice preparations.

IR-780 is a near-infrared fluorescent probe for in vivo imaging of tumor cells. IR-780 is transported into tumor cells via OATPs and ABCB10, with uptake dependent on glycolytic activity and plasma membrane potential. IR-780 preferentially accumulates in tumor cell mitochondria, including those of drug-resistant cancer cells, without chemical conjugation. IR-780 generates reactive oxygen species (ROS), induces hyperthermia and apoptosis, inhibits tumor growth and recurrence, and modulates HSP70 expression upon ultrasound or 808 nm laser exposure. IR-780 acts as a sonosensitizer, photodynamic and photothermal agent, and drug delivery carrier, with low acute imaging-dose toxicity and rapid vital organ clearance. IR-780 can be used for the research of cancer, such as breast cancer, lung cancer, and non-small cell lung cancer (NSCLC).

Sulfo-NHS-LC-Biotin sodium is an amine-reactive ester derivative of biotin and cannot pass the intact blood-retinal barrier. It can be used to assess vascular permeability of the brain and retinal vasculature.

Cy3 NHS ester 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.

BODIPY505/515 is a BODIPY dye. BODIPY dye is a small molecule dye with strong ultraviolet absorption ability, its fluorescence peak is relatively sharp, and the quantum yield is high. They are relatively insensitive to the polarity and pH of the environment and are relatively stable under different physiological conditions. Due to its structural asymmetry, BODIPY derives a variety of structural products. BODIPY lipid droplet dyes can well pass through the cell membrane into the cell, and localize the neutral lipids in the cell to specifically stain the lipid droplets, which can be used for labeling of live cells and fixed cells. Maximum excitation/emission wavelength: 505/515 nm.

Cyanine5.5 amine (Cy 5.5 amine), a Cy5.5 Analogue, is a near-infrared (NIR) fluorescent dye (Ex=648 nm, Em=710 nm). Cyanine5.5 amine can be used in the preparation of Cy5.5-labeled nanoparticles, which can be tracked and imaged with low fluorescence background using confocal microscopy.

Sulforhodamine B sodium salt is a fluorescent dye with uses spanning from laser-induced fluorescence (LIF) to the quantification of cellular proteins of cultured cells.

Fluorescein (Uranine) is widely used as a fluorescent tracer in medicinal and biological applications and tumor infected tissues tracer. Fluorescein (Uranine) is a representative green fluorophore that has been widely used as a scaffold of practically useful green fluorescent probes.

CY5-N3 (Sulfo-Cyanine5-azide) is a Cy5-azide, which is a fluorescent dye (ex/em: 646/662 nm). CY5-N3 is cell membrane permeable and can be used for live cell imaging. CY5-N3 can be used in cell imagine by Click reaction.

5-FAM (5-Carboxyfluorescein) is a green fluorescent reagent used for in situ labeling peptides, proteins and nucleotides. 5-FAM is a single isomer with Ex/Em of 490 nm/520 nm.

Amine-PEG3-Biotin is a signal amplification label containing a biotin group and a terminal primary amine group.

BODIPY TR Cadaverine, a cadaverine derivative, is a red fluorescent dye. BODIPY TR Cadaverine can be used in a a highly sensitive and robust fluorescent displacement assay, which binds to native LPS strongly, specifically recognizing lipid A, and is competitively displaced by compounds displaying an affinity for lipid A.

TRITC-dextran MW 4000 (Tetramethyl rhodamine isothiocyanate glucan, MW 4000) is a fluorescent dye, with the molecular weight of 4 kD. TRITC-dextran MW 4000 exhibits an excitation wavelength of 555 nm. TRITC-dextran MW 4000 is vessel penetrate, which could label blood plasma to visualize the vasculature. TRITC-dextran MW 4000 is utilized in drug delivery for the stability of TRITC over a wide pH range (i.e. pH 2–11) and resistance to photo-bleaching.

AF488 NHS ester is an amine specific fluorescence probe (Em=525 nm). AF488 NHS ester reacts with sulfhydryl groups and amines in aqueous and biological samples then change their chemical structure and fluorescence properties after derivatization.

7ACC1 (DEAC; Coumarin D 1421; D 1421) is a monocarboxylate transporter 1 (MCT-1)/MCT-4 specifc blocker. 7ACC1 attenuates renal cancer cell proliferation, migration, invasion and down-regulates the levels of MCT1/MCT4 expression and extracellular lactate. 7ACC1 is promising for research of cancers.

BODIPY FL NHS ester (BODIPY FL, SE) is a cell membranes-penatrable amine-reactive fluorescent probe. The maximum excitation/emission wavelength of the BODIPY-FL NHS ester are 502/511 nm, respectively. BODIPY-FL NHS ester has high stability and is insensitive to the polarity, pH and type of solvent, and can maintain stable fluorescence properties under different environmental conditions. BODIPY-FL NHS ester can be used for the synthesis of protease substrates, live cell imaging, protein labeling and immunoassay.

Cy3-dCTP is a directly fluorescently labeled deoxyribonucleotide, in which Cy3 is a cyanine fluorescent dye. Cy3-dCTP is used for direct enzymatic labeling of DNA and cDNA: with the aid of DNA polymerases, this modified nucleotide is incorporated into the extending DNA strand during processes such as reverse transcription, PCR, nick translation or random primer labeling.

AF488 DBCO ditriethylamineis a fluorescent dye and also a click chemistry reagent that can label azide-containing biomolecules. AF488 DBCO ditriethylaminemediates the coupling reaction with azide-modified 2'-OMe RNA oligonucleotides. DBCO is a bioorthogonal partner of azides and enables covalent coupling without copper (Ex/Em = 470/520 nm).

TAMRA-Azide-PEG-biotin is a dye derivative of TAMRA (HY-135640). TAMRA-Azide-PEG-biotin contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.