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-D0060
    4-Di-2-ASP
    		99.05%
    4-Di-2-ASP, a styryl pyridinium fluorescent dye, is a vital mitochondrial marker. 4-Di-2-ASP shows reliable and specific labelling of pulmonary NEBs (neuroepithelial bodies).
    4-Di-2-ASP
  • HY-D0031
    8-Aminopyrene-1,3,6-trisulfonic acid trisodium
    8-Aminopyrene-1,3,6-trisulfonic acid trisodium is a water-soluble anionic fluorescent dye. The fluorescence intensity of 8-Aminopyrene-1,3,6-trisulfonic acid trisodium remains nearly constant over a pH range from 4 to 10.
    8-Aminopyrene-1,3,6-trisulfonic acid trisodium
  • HY-P4417A
    Ac-IEPD-AMC TFA
    		98.01%
    Ac-IEPD-AMC TFA is a fluorescent substrate used to measure protease activity. Ac-IEPD-AMC undergoes hydrolysis and releases the fluorescent product 7-amino-4-methylcoumarin (AMC). AMC fluoresces under UV light irradiation and can emit fluorescent signals.
    Ac-IEPD-AMC TFA
  • HY-D0127
    Merocyanin 540
    		99.89%
    Merocyanin 540 is a fluorescent membrane probe that selectively stains the membranes of a wide variety of electrically excitable cells, but not those of nonexcitable cells (Ex/Em: 540/580 nm).
    Merocyanin 540
  • HY-W127711
    Fast Blue B Salt, Dye content ~95%
    		99.74%
    Fast Blue B Salt, Dye content ~95% is a coloring agent that dissolves fats and phenolic compounds extracted from rye, as well as diazonium. Fast Blue B Salt, Dye content ~95% can be used for the semiquantification of alkylresorcinols in rye and produces a color precipitate in the presence of acetone.
    Fast Blue B Salt, Dye content ~95%
  • HY-W020086
    2,3-Diaminophenazine
    		99.84%
    2,3-Diaminophenazine (2,3-Phenazinediamine) is an orally active amino derivative of phenazine. 2,3-Diaminophenazine can intercalate into DNA. 2,3-Diaminophenazine triggers photochemical reactions. 2,3-Diaminophenazine inhibits vascular hypertrophy and tissue AGE deposition in diabetic rats. 2,3-Diaminophenazine can be used for luminescence and diabetes research.
    2,3-Diaminophenazine
  • HY-D0102
    4-(Aminosulfonyl)-7-fluoro-2,1,3-benzoxadiazole
    		98.75%
    4-(Aminosulfonyl)-7-fluoro-2,1,3-benzoxadiazole (ABD-F) is a fluorescent reagent for the sensitive and specific detection of thiols. 4-(Aminosulfonyl)-7-fluoro-2,1,3-benzoxadiazole has low fluorescence background, and good stability of fluorophor.
    4-(Aminosulfonyl)-7-fluoro-2,1,3-benzoxadiazole
  • HY-D1566
    Sulfo-Cy7.5 maleimide
    Sulfo-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.
    Sulfo-Cy7.5 maleimide
  • HY-D0249
    Sunset Yellow FCF
    		≥98.0%
    Sunset Yellow FCF (Orange Yellow S) is an orange azo dye with a maximum absorption wavelength of 480 nm. Sunset Yellow FCF can be used in food, cosmetics and pharmaceuticals.
    Sunset Yellow FCF
  • HY-NP030
    Ovalbumin-PE
    Ovalbumin-PE is Cy5-labeled Ovalbumin (OVA).
    Ovalbumin-PE
  • HY-D1256
    Msr-blue
    		99.38%
    Msr-blue is a first turn-on fluorescent probe for methionine sulfoxide reductase with a more than 100-fold fluorescence increment. Msr-blue is used for monitoring the enzyme activity in live cells (λex=340 nm, λem=440 nm).
    Msr-blue
  • HY-D1459
    BODIPY 665/676
    		99.23%
    BODIPY 665/676 is a lipophilic radical-sensitive fluorescent probe that can be used to study radical-driven lipid autoxidation (Ex/Em=665/676 nm).
    BODIPY 665/676
  • HY-W040144
    Bromocresol green
    Bromocresol green is a pH-sensitive triphenylmethane dye commonly used for the determination of protein and albumin in serum. Bromocresol green is a bio-based dye with a yellow-green to blue-green color. Bromocresol green turns yellow (λmax=435 nm, protonated form) when placed in acidic solution (e.g. pH=4.15), and turns blue in basic solution (λmax=615 nm, deprotonated form). Bromocresol green is widely used as a pH indicator in the field of biochemical analysis. In addition, Bromocresol green is also used to detect the concentration of molecules such as creatinine, and to judge the viability of cells.
    Bromocresol green
  • HY-123275B
    H-D-Phe-Pip-Arg-pNA acetate
    		98.90%
    H-D-Phe-Pip-Arg-pNA (S-2238) acetate, a chromogenic substrate, is patterned after the N-terminal portion of the A alpha chain of fibrinogen, which is the natural substrate of thrombin. H-D-Phe-Pip-Arg-pNA acetate is specific for thrombin and is used to measure antithrombin-heparin cofactor (AT-III). The AT-III assay using H-D-Phe-Pip-Arg-pNA acetate is sensitive, accurate, and easy to perform.
    H-D-Phe-Pip-Arg-pNA acetate
  • HY-D1804
    Vari Fluor 680-Streptavidin
    Vari Fluor 680-Streptavidin is a dye marker of Vari Fluor-streptavidin consisting of labeling streptavidin with a Vari Fluor series of fluorescent probes. Streptavidin is a high-affinity tetramer protein, each tetramer consisting of four identical streptavidin subunits. Streptavidin binds to biotin specifically via a reversible non-covalent effect. Streptavidin can achieve rapid and efficient detection of biotin markers, and is often used in immunofluorescence (IF), enzyme-linked immunosorbent assay (ELISA), immunohistochemical staining (IFH), in situ hybridization (ISH) and other experiments. Ex/Em=680 nm/701 nm.
    Vari Fluor 680-Streptavidin
  • HY-133884
    ICG-amine
    		99.91%
    ICG amine, as a near-infrared fluorescent probe, binds to amino acid residues without condensing agents. ICG is a tricarbocyanine dye.
    ICG-amine
  • HY-D2468
    HRP-Streptavidin
    HRP-Streptavidin is a conjugate of HRP and Streptavidin. HRP-Streptavidin can be used for detection of biotinylated proteins and generates light signal.
    HRP-Streptavidin
  • 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-D1801
    Vari Fluor 488 SE
    Vari Fluor 488 SE (VF 488 SE) is a dye marker of the Vari Fluor SE series (Ex/Em=488 nm/513 nm). The Vari Fluor SE series of dyes are a class of fluorescent dyes containing NHS ester groups used to label free amines (-NHX) on antibodies, proteins, peptides, amine-modified oligonucleotides and other biomolecules.
    Vari Fluor 488 SE
  • HY-W356117
    C6 NBD Glucosylceramide
    		≥98.0%
    C6 NBD Glucosylceramide is a glucosylceramide fluorescent derivative (Ex=466 nm, Em=535 nm). C6 NBD Glucosylceramide can be used to study the metabolism and internalization of glucosylceramide and also for the determination of glucosyl ceramide synthase activity.
    C6 NBD Glucosylceramide
Cat. No. Product Name / Synonyms Application Reactivity