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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-P5993
    MeOSuc-Ala-Ala-Pro-Val-4-MNA
    MeOSuc-Ala-Ala-Pro-Val-4-MNA is a elastase fluorogenic substrate that can be detected at 425 nm (with excitation at 340 nm).
    MeOSuc-Ala-Ala-Pro-Val-4-MNA
  • HY-D1363
    BDP R6G maleimide
    BDP R6G maleimide is a borodipyrromethane fluorophore with absorption and emission wavelengths similar to those of R6G rhodamine. Sulfhydryl labelling is a common protein modification where the cysteine residues in the protein allow more site-specific labelling than the NHS ester of the amine group. BDP R6G maleimide is a thiol reactive dye that reacts with thiol groups to form thioester bonds.
    BDP R6G maleimide
  • HY-149620
    Cy5-PEG2-exo-BCN
    Cy5-PEG2-exo-BCN is a dye derivative of Cyanine 5 (Cy5) (HY-D0821) containing 2 PEG units. Cy5-PEG2-exo-BCN contains the lyophilic bidentate macrocyclic ligand BCN, which can further synthesize macrocyclic complexes. In click chemistry, BCN reacts with molecules containing azide groups to form stable triazoles in the absence of catalysts.
    Cy5-PEG2-exo-BCN
  • HY-D0131
    2-Methoxy-2-(naphthalen-2-yl)acetonitrile
    2-Methoxy-2-(naphthalen-2-yl)acetonitrile 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.
    2-Methoxy-2-(naphthalen-2-yl)acetonitrile
  • HY-D2156
    AF 430 azide
    AF 430 azide 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 azide can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via the azide group and molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups. To achieve specific coupling of dye labels and biomolecules.
    AF 430 azide
  • HY-D0334
    Direct Red 81
    Direct Red 81 is a diazo dye with a very high water solubility. The dye adsorption efficiency of Direct Red 81 is increased by increasing the adsorbent dose and adsorption time.
    Direct Red 81
  • HY-W879234
    TriSulfo-Cy5.5 DBCO
    TriSulfo-Cy5.5 DBCO is a near infrared (NIR) fluorescent anthocyanin fluorescent dye.TriSulfo-Cy5.5 DBCO can be used to label proteins, antibodies, peptides, nucleic acid molecules.
    TriSulfo-Cy5.5 DBCO
  • HY-D0087
    MDCC
    MDCC 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.
    MDCC
  • HY-NP150
    Maackia Amurensis Lectin I (Biotinylated)
    Maackia Amurensis Lectin I Biotinylated is a plant lectin that can be used as a probe to specifically bind biomolecules (such as polysaccharides, peptides, etc.). Maackia Amurensis Lectin I Biotinylated is a biological material or organic compound that can be used in life science research.
    Maackia Amurensis Lectin I (Biotinylated)
  • HY-D1500
    Fluorescent NIR 885
    Fluorescent NIR 885 is a cyanine near-infrared-absorbing dye. Fluorescent NIR 885 can be used as a photoprotective agent (extracted from patent WO2014006589 compound 1-35).
    Fluorescent NIR 885
  • HY-D2312
    Mito-Rh-S
    Mito-Rh-S is a ratiometric near-infrared (NIR) fluorescent probe that detects the fluctuation of mitochondrial HClO levels during ferroptosis in hepatocellular carcinoma (HCC).
    Mito-Rh-S
  • HY-D1928
    ATTO 425 amine
    ATTO 425 Amine is an amine derivative of ATTO 425, the maximum excitation emission wavelength: 439/489 nm.
    ATTO 425 amine
  • HY-D1904
    D-Luciferin 6'-methyl ether
    D-Luciferin 6'-methyl ether sodium salt is a firefly luciferase inhibitor. D-Luciferin 6'-methyl ether sodium salt is a cofactor in Luc-catalyzed synthesis of dinucleoside polyphosphates.
    D-Luciferin 6'-methyl ether
  • HY-D2888H
    RB-PEG-FA (MW 10000)
    RB-PEG-FA (MW 10000) (Rhodamine B-PEG-FA (MW 10000)) is a fluorescent dye composed of Rhodamine B (HY-Y0016), PEG and Folic acid (FA) (HY-16637). RB-PEG-FA (MW 10000) can be used for cell imaging, folate receptor targeting and detection (Ex/Em = 546/610 nm).
    RB-PEG-FA (MW 10000)
  • HY-D2883D
    RB-PEG-SH (MW 3400)
    RB-PEG-SH (MW 3400) (Rhodamine B-PEG-SH (MW 3400)) is a fluorescent dye composed of Rhodamine B (HY-Y0016), PEG and sulfhydryl (SH). SH is highly reactive and can react with a variety of functional groups (such as maleimide) to form stable thioether bonds (Ex/Em = 546/610 nm).
    RB-PEG-SH (MW 3400)
  • HY-120659
    Gly-Gly-AMC
    Gly-Gly-AMC is a fluorogenic peptide substrate. Gly-Gly-AMC can be used to assess bacterial protease activity of P. aeruginosa and S. aureus.
    Gly-Gly-AMC
  • HY-D1383
    LZ-1105
    LZ-1105 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.
    LZ-1105
  • HY-D1869
    800CW maleimide
    800CW maleimide is an infrared dye that can be used for labeling molecules that contain free sulfhydryl (–SH) groups (Ex: 778 nm; Em: 796 nm). 800CW maleimide binds to plasma proteins.
    800CW maleimide
  • HY-D0104
    Fluorescein-O-acetate
    Fluorescein-O-acetate is a fluorescent reagent.
    Fluorescein-O-acetate
  • HY-D2797
    Chitosan-Cy7 (MW 2000)
    Chitosan-Cy7 (MW 2000) is a Chitosan labeled with Cy7 (HY-D0825). Chitosan-Cy7 (MW 2000) can be used for fluorescent labeling and imaging.
    Chitosan-Cy7 (MW 2000)
Cat. No. Product Name / Synonyms Application Reactivity