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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-151701
    DiSulfo-Cy5 alkyne
    DiSulfo-Cy5 alkyne is a fluorescent dye can be used as a click chemistry reagent.
    DiSulfo-Cy5 alkyne
  • HY-135636
    Ponatinib Acid
    Ponatinib Acid, an analogue of Ponatinib, is usually used as a labeled chemical or fluorescent probe. Ponatinib Acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Ponatinib Acid
  • HY-133424A
    Trisulfo-Cy3-acid disodium
    Trisulfo-Cy3-acid disodium is a derivative of Cy3 (Cyanine3) dye. Trisulfo-Cy3-acid disodium contains three sulfonate ions and has improved water solubility.
    Trisulfo-Cy3-acid disodium
  • HY-D0066
    7-Diethylaminocoumarin-3-carbohydrazide
    7-Diethylaminocoumarin-3-carbohydrazide is a coumarin. 7-Diethylaminocoumarin-3-carbohydrazide can be used to detect sugar chains and quantify biological carbonyl compounds.
    7-Diethylaminocoumarin-3-carbohydrazide
  • HY-W151206
    Hydroxy naphthol blue disodium
    Hydroxy naphthol blue disodium, an azo dye, is a metal indicator for calcium and a colorimetric reagent for alkaline earth metal ions ( λmax = 650 nm). In the pH range between 12 and 13, the solution of the indicator is reddish pink in the presence of calcium ion and to deep blue in the presence of disodium EDTA.
    Hydroxy naphthol blue disodium
  • HY-D2025
    ATTO 550 biotin
    ATTO 550 biotin is a biotin derivative of ATTO 550 with maximum excitation/emission wavelengths: 554/576 nm.
    ATTO 550 biotin
  • HY-D1925
    ATTO 425 maleimide
    ATTO 425 Maleimide is a maleimide ester derivative of ATTO 425, which can be used to label proteins or antibodies. The maximum excitation emission wavelength: 439/489 nm.
    ATTO 425 maleimide
  • HY-D1646
    BDP TR methyltetrazine
    BDP TR methyltetrazine is a BDP dye linker containing a methyltetrazine group. BDP TR methyltetrazine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.
    BDP TR methyltetrazine
  • HY-D1361
    Alkyne cyanine dye 718
    Alkyne cyanine dye 718 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.
    Alkyne cyanine dye 718
  • HY-D1210
    Solvent Orange 14
    Solvent Orange 14 is an orange dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
    Solvent Orange 14
  • HY-D0038
    BTBCT
    BTBCT is mainly used as a label in time-resolved fluorescence immunoassays (TRFIA). The lower limit of detection for TSH TR-IFMA is 0.011 mIU/L in a 10 μl sample volume. The high fluorescence intensity and stability of BTBCT improves the sensitivity of the assay.
    BTBCT
  • HY-155324
    Cy3-PEG7-TCO
    Cy3-PEG7-TCO is a dye derivative of Cyanine 3 (Cy3) (HY-D0822) containing 7 PEG units. Cy3-PEG7-TCO can use its own TCO group to perform an inverse electron demand Diels-Alder reaction (iEDDA) with molecules with Tetrazine groups.
    Cy3-PEG7-TCO
  • HY-D1719
    Cypate
    Cypate, a cyanine dye, is a near infrared (NIR) fluorescent probe for in vivo tumor imaging.
    Cypate
  • HY-D2191
    Ag2S-COOH (1200 nm)
    Ag2S-COOH (1200 nm) is a fluorescent dyes.
    Ag2S-COOH (1200 nm)
  • HY-W247614
    D 131
    D 131 is an orange organic indoline dye. The absorption maxima of D131 in solution is λ=425 nm.
    D 131
  • HY-D2342
    SARS-CoV-2 3CLpro probe-1
    SARS-CoV-2 3CLpro probe-1 (Compound probe 3) is a selective and activity-based probe for the SARS-CoV-2 3CL protease. SARS-CoV-2 3CLpro probe-1 can detect endogenously expressed 3CLpro in SARS-CoV-2-infected cells.
    SARS-CoV-2 3CLpro probe-1
  • HY-127008
    N-Butylfluorescein
    N-Butylfluorescein is an alkyl-substituted fluorescein, can be used for synthesis of fluorogenic substrates for assaying phosphatidylinositol-specific phospholipase C.
    N-Butylfluorescein
  • HY-P4334
    Bz-RGFFL-4MβNA
    Bz-RGFFL-4MβNA (Bz-Arg-Gly-Phe-Phe-Leu-4MβNA) is a peptide and can be used fluorogenic substrate.
    Bz-RGFFL-4MβNA
  • HY-158541
    A4 glycan, 2-AB labelled
    A4 glycan, 2-AB labelled (A4 N-linked oligosaccharide, 2-AB labelled) is a N-polysaccharide protein and a multifunctional fluorescent linker. The resulting conjugates exhibit high sensitivity and specificity by mimicking the antennal elements of N-glycans.
    A4 glycan, 2-AB labelled
  • HY-D1582
    C12 NBD Phytoceramide
    C12 NBD Phytoceramide, a ceramide analogue, is a fluorescent substrate, can be used to detect ceramidase activity.
    C12 NBD Phytoceramide
Cat. No. Product Name / Synonyms Application Reactivity