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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-DY1018
    FITC-Dextran (MW 4000) (solution)
    FITC-Dextran (MW 4000) (solution) is a fluorescent probe for fluorescein isothiocyanate (FITC) dextran (Ex=495 nm; Em=525 nm). FITC-Dextran (MW 4000) can be used as a marker to reveal heat shock-induced cell damage and to study the early and late stages of apoptosis. FITC-Dextran (MW 4000) can also be used for cell permeability studies, such as blood-brain barrier permeability and determination of the extent of blood-brain barrier disruption.
    Solvent and Concentration: Sterile water: 2 mM
    FITC-Dextran (MW 4000) (solution)
  • HY-135415A
    Cyanine5.5 NHS ester chloride TEA
    Cyanine5.5 NHS ester chloride TEA is a reactive dye for the labeling of proteins, and antibodies and small molecular compounds.
    Cyanine5.5 NHS ester chloride TEA
  • HY-145727E
    Cy3 labled Volanesorsen sodium
    Cy3 labled Volanesorsen sodium is a Cy3 labled Volanesorsen sodium.
    Cy3 labled Volanesorsen sodium
  • HY-P2549
    Biotin-β-Amyloid (1-40)
    Biotin-β-Amyloid (1-40) is a N-terminal-labelled biotinylated amyloid-β-(1-40) peptide.
    Biotin-β-Amyloid (1-40)
  • HY-123275
    H-D-Phe-Pip-Arg-pNA
    H-D-Phe-Pip-Arg-pNA (S-2238), 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 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 is sensitive, accurate, and easy to perform.
    H-D-Phe-Pip-Arg-pNA
  • HY-D2894B
    4Arm-PEG10000-RB
    4Arm-PEG10000-RB (4Arm-PEG10000-Rhodamine B) is a fluorescent dye composed of Rhodamine B (HY-Y0016) and PEG with a four-arm structure. 4Arm-PEG10000-RB can be used for drug delivery and fluorescence imaging (Ex/Em=546/610 nm).
    4Arm-PEG10000-RB
  • 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-N15883
    18:1-C11 BODIPY 505/515-C11 BODIPY 505/515 TG
    18:1-C11 BODIPY 505/515-C11 BODIPY 505/515 TG is a fluorescently-labeled triglyceride that can be used to measure triacylglycerol hydrolases (Ex/Em = 495/503 nm).
    18:1-C11 BODIPY 505/515-C11 BODIPY 505/515 TG
  • 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-177634D
    Cy3 labled Gatuzosiran sodium
    Cy3 labled Gatuzosiran sodium is a Cy3 labled Gatuzosiran sodium.
    Cy3 labled Gatuzosiran sodium
  • HY-W151206
    Hydroxy naphthol blue disodium
    Hydroxy naphthol blue disodium is an azo dye compound commonly used as an acid-base indicator (λmax = 650 nm). Within the pH range of 12 to 13, the indicator solution of Hydroxy naphthol blue disodium appears pale red in the presence of calcium ions and dark blue in the presence of disodium EDTA.
    Hydroxy naphthol blue disodium
  • HY-177622D
    Cy3 labled Cibrigirsen sodium
    Cy3 labled Cibrigirsen sodium is a Cy3 labled Cibrigirsen sodium.
    Cy3 labled Cibrigirsen sodium
  • 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-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-D3209
    NIR-ASM
    NIR-ASM is a near-infrared fluorescent probe that can cross cell membranes and be activated by NQO1. NIR-ASM can distinguish NQO1-expressing cancer cells from normal cells via fluorescence microscopy and flow cytometry. NIR-ASM generates near-infrared fluorescence with a high signal-to-noise ratio in tumor models with NQO1 activity, enabling the detection of endogenous NQO1 activity in vivo. NIR-ASM is applicable to the research of lung cancer and breast cancer.
    NIR-ASM
  • 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-D2191
    Ag2S-COOH (1200 nm)
    Ag2S-COOH (1200 nm) is a fluorescent dyes.
    Ag2S-COOH (1200 nm)
Cat. No. Product Name / Synonyms Application Reactivity