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  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-P10083
    Ac-VQVD-pNA
    Ac-VQVD-pNA is a chromogenic substrate of caspase 3.
    Ac-VQVD-pNA
  • HY-D1645
    DANSYL-X, SE
    DANSYL-X, SE is an environmentally sensitive hydrophobic dye (Excitation 333 nM; Emission 518 nM). DANSYL-X, SE can increase fluorescence intensity in hydrophobic environment.
    DANSYL-X, SE
  • HY-NP163B
    Wheat germ agglutinin-AF532
    Wheat germ agglutinin-AF532 (WGA-AF532) is a plant lectin that contains the fluorescent dye AF532, which can be used to identify carbohydrate chains. Wheat germ agglutinin-AF532 can be used to assess abnormal glycosylation levels in the body. The specific glycosylation detection sites of Wheat germ agglutinin is bis-GlcNAc, SA.
    Wheat germ agglutinin-AF532
  • HY-N16311
    18:0 Sulfo-cyanine 5 PE ammonium
    18:0 Sulfo-cyanine 5 PE ammonium is a fluorescent lipid that can be used to visualize cell membranes (Ex/Em = 650/670 nm).
    18:0 Sulfo-cyanine 5 PE ammonium
  • HY-D1274
    Sulfo-cyanine3 azide
    Sulfo-cyanine3 azide is an azide cyanine dye and fluorescent probe (Ex/Em=548/563 nm). Sulfo-cyanine3 azide can be involved in synthesis of fused tricyclic heterocycles, produces immunostimulatory agents. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
    Sulfo-cyanine3 azide
  • HY-D2194
    AgAuSe-COOH (1000 nm)
    AgAuSe-COOH (1000 nm) is a fluorescent quantum dot that emits fluorescence in the near-infrared II region, with an emission peak reaching 1000 nm. AgAuSe-COOH (1000 nm) has the advantages of narrow band gap, large Stokes shift, and good photostability. AgAuSe-COOH (1000 nm) can bind proteins, antibodies, peptides, PEG, etc., and can be widely used in the field of biological imaging.
    AgAuSe-COOH (1000 nm)
  • HY-D1508
    2-(Pyren-1-ylaminocarbonyl)ethyl methanethiosulfonate
    2-(Pyren-1-ylaminocarbonyl)ethyl methanethiosulfonate is a fluorescent.
    2-(Pyren-1-ylaminocarbonyl)ethyl methanethiosulfonate
  • HY-D2154
    AF 430 carboxylic acid dipotassium
    AF 430 carboxylic acid is a derivative of the yellow fluorescent dye AF 430. AF430 has an excitation wavelength of 425 nm and an emission wavelength of 542 nm. AF 430 carboxylic acid can form covalent bonds through a condensation reaction between carboxylic acid groups and molecules containing amino groups. To achieve specific coupling of dye labels and biomolecules.
    AF 430 carboxylic acid dipotassium
  • HY-D3019
    CY5-Alginate
    CY5-Alginate is a CY5 (HY-D0821)-labeled alginate.CY5-Alginate combines the polysaccharide properties of alginate with the fluorescence properties of CY5, playing an important role in fields such as fluorescent labeling, cell imaging, and drug delivery research (Ex/Em = 633/670 nm).
    CY5-Alginate
  • HY-177619D
    Cy3 labled Belcesiran sodium
    Cy3 labled Belcesiran sodium is a Cy3 labled Belcesiran sodium.
    Cy3 labled Belcesiran sodium
  • HY-D0951
    Methyl violet dye
    Methyl violet dye 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.
    Methyl violet dye
  • HY-D1486
    4,4-Difluoro-8-(4'-iodophenyl)-1,7-bis-(1'-napthyl)-4-bora-3alpha,4alpha-diaza-s-indacene
    4,4-Difluoro-8-(4'-iodophenyl)-1,7-bis-(1'-napthyl)-4-bora-3alpha,4alpha-diaza-s-indacene is a fluorescent dye for DNA sequencing.
    4,4-Difluoro-8-(4'-iodophenyl)-1,7-bis-(1'-napthyl)-4-bora-3alpha,4alpha-diaza-s-indacene
  • HY-147206A
    Biotin-PEG1000-Alk
    Biotin-PEG1000-Alk is a biotin labeled PEG derivative. Biotin is an enzyme co-factor, can be used for labeling protein; PEG is a hydrophilic and water-soluble polymer with low toxicity; Alk (Alkyne), acyclic (branched or unbranched) aliphatic hydrocarbon, can react with azido, which improve the efficiency of biotin binding targets. Biotin-PEG1000-Alk is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Biotin-PEG1000-Alk
  • HY-D0267
    Quinaldine red
    Quinaldine red is a fluorescent probe for determining the melting temperature (Tm) of proteins.
    Quinaldine red
  • HY-P11425
    Dabcyl-GLRTQSFS-EDANS
    Dabcyl-GLRTQSFS-EDANS is a fluorogenic peptide substrate. Dabcyl-GLRTQSFS-EDANS can be used to measure the enzymatic activities of Hepatitis A Virus 3C proteinase.
    Dabcyl-GLRTQSFS-EDANS
  • HY-D1513
    O-Methyl-O-(N-butylfluorescein)phosphate
    O-Methyl-O-(N-butylfluorescein)phosphate is a fluorescent dye.
    O-Methyl-O-(N-butylfluorescein)phosphate
  • HY-W749217A
    Cyanine 5 azide
    Cyanine 3.5 azide is a cyanine dye functionalized with an azide. Cyanine 3.5 azide is a click chemistry reagent, it 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 (Ex/Em = 633/670 nm).
    Cyanine 5 azide
  • HY-D3254
    IR 650 picolyl azide
    IR 650 picolyl azide is a near-infrared fluorescent probe. The click chemistry reaction handle of IR 650 picolyl azide is a terminal picolyl azide, which can undergo a 'copper-catalyzed alkyne-azide cycloaddition' reaction. (Ex = 650nm, Em = 670nm)
    IR 650 picolyl azide
  • HY-D2814
    Chitosan-Cy7 (MW 100000)
    Chitosan-Cy7 (MW 100000) is a Chitosan labeled with Cy7 (HY-D0825). Chitosan-Cy7 (MW 100000) can be used for fluorescent labeling and imaging.
    Chitosan-Cy7 (MW 100000)
  • HY-NP095
    Aleuria Aurantia Lectin (Fluorescein)
    Aleuria Aurantia Lectin (AAL) Fluorescein is a plant lectin that can be used as a probe to specifically bind biomolecules (such as polysaccharides, peptides, etc.).Aleuria Aurantia Lectin (AAL) Fluorescein is a biological material or organic compound that can be used in life science research.
    Aleuria Aurantia Lectin (Fluorescein)
Cat. No. Product Name / Synonyms Application Reactivity