2. Signaling Pathways
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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-137099A
    Genistein 7-sulfate sodium
    		≥99.0%
    Genistein 7-sulfate sodium is a metabolite of genistein that can reduce the activity of estrogen agonists in MCF-7 cells. Genistein 7-sulfate sodium can promote the growth of MCF-7 cells at concentrations of 10 μM and above.
    Genistein 7-sulfate sodium
  • 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-W250928D
    Biotin-PEG-azide (MW 3400)
    Biotin-PEG-azide (MW 3400) 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; azide, is a moderately good leaving group, can react with alkyne by Cu-catalyzation, which improve the efficiency of biotin binding targets. 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.
    Biotin-PEG-azide (MW 3400)
  • HY-D2067
    ATTO 680 azide
    ATTO 680 azide is an azide derivative of ATTO 680 with excitation/emission maxima at 681/698 nm. ATTO 680 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.
    ATTO 680 azide
  • 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)
  • HY-D2100A
    Cy5-DSPE chloride ammonium
    Cy5-DSPE chloride ammonium is a fluorescent phospholipid.
    Cy5-DSPE chloride ammonium
  • HY-D1981
    ATTO 633 iodacetamid
    ATTO 633 Iodacetamid is an iodoacetamide derivative of ATTO 594 with excitation/emission maxima at 630/651 nm.
    ATTO 633 iodacetamid
  • HY-D2708
    Cy3 Dextran (MW 10000)
    Cy3 Dextran (MW 10000) is a fluorescent labeling reagent that combines Cy3 (HY-D0822) fluorescent dye and Dextran (HY-112624). The Cy3 fluorophore is commonly used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. Dextran has an inhibitory effect on thrombocyte aggregation and coagulation factors and is used as a plasma volume expander (Ex/Em = 550/570 nm).
    Cy3 Dextran (MW 10000)
  • HY-107864
    Erythrosine B free acid
    		99.07%
    Erythrosine B free acid is a visibly red dye with colorimetric and fluorescent properties that serves as an important dye for many Gram-positive and -negative bacteria. Erythrosine B free acid can be used for live/dead determination in both colorimetric and fluorescence-based assays for low, medium and high-throughput experimentation.
    Erythrosine B free acid
  • HY-D2142
    Cy5-PEG2-TCO
    Cy5-PEG2-TCO is a fluorescent dye that reacts with tetrazines. Cy5-PEG2-TCO contains a TCO group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing a Tetrazine group.
    Cy5-PEG2-TCO
  • HY-D1958
    ATTO 565
    ATTO 565 is a new type of fluorescent dye with high fluorescence yield, which can be used for most labeling applications, maximum excitation/emission wavelength: 564/590 nm.
    ATTO 565
  • HY-NP084
    Dolichos Biflorus Agglutinin
    Dolichos Biflorus Agglutinin is a plant lectin that can be used as a probe to specifically bind biomolecules (such as polysaccharides, peptides, etc.).Dolichos Biflorus Agglutinin is a biological material or organic compound that can be used in life science research.
    Dolichos Biflorus Agglutinin
  • HY-151753
    Trisulfo-Cy5.5-Alkyne
    Trisulfo-Cy5.5-Alkyne is a click chemistry reagent containing an azide group. Trisulfo-Cy5.5-Alkyne can participate in copper-catalyzed Click Chemistry reactions. Trisulfo-Cy5.5-Alkyne is a near infrared (NIR) fluorescent anthocyanin fluorescent dye.
    Trisulfo-Cy5.5-Alkyne
  • HY-D1400
    HBTP-H2S chloride
    HBTP-H2S (chloride) is a NIR fluorescent probe for in situ bioimaging of endogenous H2S in rice roots under Al 3+ and flooding stresses.
    HBTP-H2S chloride
  • HY-D2001A
    ATTO 488 NHS ester TEA
    TTO 488 NHS ester TEA is a new fluorescent marker based on the Rhodamine structure. It has strong absorption, high fluorescence quantum yield, high thermal stability and photochemical stability, and is suitable for single molecule detection and high-resolution microscopy. TTO 488 NHS ester TEA is an NHS ester derivative of ATTO 488 that can be used to label proteins or antibodies.
    ATTO 488 NHS ester TEA
  • HY-D2894A
    4Arm-PEG-RB (MW 5000)
    4Arm-PEG-RB (MW 5000) (4Arm-PEG-Rhodamine B (MW 5000)) is a fluorescent dye composed of Rhodamine B (HY-Y0016) and PEG with a four-arm structure. 4Arm-PEG-RB (MW 5000) can be used for drug delivery and fluorescence imaging (Ex/Em = 546/610 nm).
    4Arm-PEG-RB (MW 5000)
  • HY-D1187A
    2-Aza-ε-cAMP sodium
    2-Aza-ε-cAMP (sodium) 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-Aza-ε-cAMP sodium
  • HY-D0963
    16,17-Bis(decyloxy)violanthrone
    16,17-Bis(decyloxy)violanthrone 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.
    16,17-Bis(decyloxy)violanthrone
  • HY-D0161
    ZnAF-2F DA
    ZnAF-2F DA 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.
    ZnAF-2F DA
  • HY-D0355
    Flazo Orange
    Flazo Orange 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.
    Flazo Orange
Cat. No. Product Name / Synonyms Application Reactivity