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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-D0356
    Eriochrome Black A
    Eriochrome Black A is an azo dye that can be removed from water by an adsorbent made of magnetic NiFe2O4 nanoparticles.
    Eriochrome Black A
  • HY-D1309
    Sulfo-cyanine3 NHS ester sodium
    Sulfo-cyanine3 NHS ester sodium is a water-soluble cyanine dye that contains NHS ester groups and is amino-reactive.
    Sulfo-cyanine3 NHS ester sodium
  • HY-D2630
    Cy3 HA MA (MW 3000)
    Cy3 HA MA (MW 3000) is a hyaluronic acid methacrylate labeled with CY3 (HY-D0822). Cy3 HA MA (MW 3000) is widely used in the fields of biolabeling and imaging, drug delivery and tissue engineering and regenerative medicine (Ex/Em = 550/570 nm).
    Cy3 HA MA (MW 3000)
  • HY-D2704
    Cy7.5 HA biotin (MW 10000)
    Cy7.5 HA biotin (MW 10000) is a biotinylated hyaluronic acid labeled with CY7.5 (HY-D0926). Cy7.5 HA biotin (MW 10000) is widely used for cell imaging and in vivo imaging of shallow tissues (Ex/Em = 770/820 nm).
    Cy7.5 HA biotin (MW 10000)
  • HY-D2480
    BODIPY 480/508-cholesteryl linoleate
    BODIPY 480/508-cholesteryl linoleate is a cell-permeable and fluorescently tagged derivative of Cholesteryl Linoleate (HY-W010697). BODIPY 480/508-cholesteryl linoleate has been used to monitor cholesterol trafficking in isolated human monocyte-derived macrophages (Ex/Em=480/508 nm).
    BODIPY 480/508-cholesteryl linoleate
  • HY-D2752
    Cy5.5 dimethyl
    Cy5.5 dimethyl is a free non-activated dye and can be used as a non-reactive fluorophore for experiment controls and instrument calibration. It is a non-sulfonated reagent with good solubility in organic solvents and limited aquous solubility.
    Cy5.5 dimethyl
  • HY-D0259R
    Erythrosine B (Standard)
    Erythrosine B (Standard) is the analytical standard of Erythrosine B. This product is intended for research and analytical applications. Erythrosine B is an artificial dye widely used in the food and textile industries. Erythrosine B is also a novel photosensitizer which has been used to develop animal models.
    Erythrosine B (Standard)
  • HY-D2567
    Cy5.5-PEG-DSPE (MW 5000)
    Cy5.5-PEG-DSPE (MW 5000) is a PEG phospholipid with Cy5.5 (HY-D0924) dye used in protein/nucelic acid labeling and fluorescence microscopy. Cy5.5-PEG-DSPE (MW 5000) can self-assemble in aqueous solution to form micelles/lipid bilayer and used to prepare liposomes or nanoparticles for nutrients delivery such as mRNA or DNA vaccine.
    Cy5.5-PEG-DSPE (MW 5000)
  • HY-W151629A
    Ferrozine sodium hydrate
    Ferrozine sodium hydrate is a spectrophotometric reagent for iron, can react with divalent Fe to form a stable magenta complex species. The complex has an absorption peak at 562 nm.Ferrozine sodium hydrate-based colorimetric assays can quantify iron in cells
    Ferrozine sodium hydrate
  • HY-D2230
    Cy3.5 alkyne
    Cy3.5 alkyne, a fluorescent dye, is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. Cy3.5 alkyne can be used for the detection and labeling of azide-containing molecules/ biomolecules with fluorescence spectroscopy after azide-alkyne cycloaddition.
    Cy3.5 alkyne
  • HY-15422
    Dye 937
    Dye 937, substituted unsymmetrical cyanine dyes with selected permeability, useful in the detection of DNA in electrophoretic gels.
    Dye 937
  • HY-D2510
    Cy3-PEG-SH (MW 2000)
    Cy3-PEG-SH (MW 2000) (Cy3-PEG-Thiol) is a near infrared fluorescent labeling reagent that combines Cy3 fluorescent dye, polyethylene glycol (PEG) and sulfhydryl (SH) polyethylene glycol derivatives, and is suitable for molecular coupling. Cy3-PEG-SH (MW 2000) is absorbed at 550nm and has high solubility and end-group substitution rate.
    Cy3-PEG-SH (MW 2000)
  • HY-D2526
    Cy3 IRGD-PEG-DSPE
    Cy3 IRGD-PEG-DSPE is a PEG phospholipid with Cy3 (HY-D0822) dye used in protein/nucelic acid labeling and fluorescence microscopy. Cy3 IRGD-PEG-DSPE can self-assemble in aqueous solution to form micelles/lipid bilayer and used to prepare liposomes or nanoparticles for nutrients delivery such as mRNA or DNA vaccine.
    Cy3 IRGD-PEG-DSPE
  • HY-D2530
    Cy5-PEG-SH (MW 3400)
    Cy5-PEG-SH (MW 3400) is a fluorescent labeling reagent that combines Cy5 (HY-D0821) fluorescent dye, polyethylene glycol (PEG) and sulfhydryl (SH) derivatives, and is suitable for molecular coupling. SH is highly reactive and can react with a variety of functional groups (such as maleimide) to form stable thioether bonds.
    Cy5-PEG-SH (MW 3400)
  • HY-D0592
    Dispersol yellow brown XF
    Dispersol yellow brown XF 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.
    Dispersol yellow brown XF
  • HY-D2588
    Cy7.5 PEG-NH2
    Cy7.5 PEG-NH2 is a polyethylene glycol derivative containing CY7.5 (HY-D0926) fluorescent dye and polyethylene glycol (PEG) and an amino group. The CY7.5 fluorophore is commonly used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. Cy7.5 PEG-NH2 can be used for fluorescence imaging, fluorescence tracing and fluorescence labeling.
    Cy7.5 PEG-NH2
  • HY-D2556
    Cy5.5-PEG-SH (MW 1000)
    Cy5.5-PEG-SH (MW 1000) is a fluorescent labeling reagent that combines Cy5.5 (HY-D0924) fluorescent dye, polyethylene glycol (PEG) and sulfhydryl (SH) derivatives, and is suitable for molecular coupling. SH is highly reactive and can react with a variety of functional groups (such as maleimide) to form stable thioether bonds.
    Cy5.5-PEG-SH (MW 1000)
  • HY-D0349
    Disperse Red 13
    Disperse Red 13 is a red dye derived from anthraquinone. It is used in plastics, textiles and cosmetics.
    Disperse Red 13
  • HY-D2733
    N14G
    N14G is a fluorescent dye that can be used to stain bacteria such as Mycobacterium tuberculosis.
    N14G
  • HY-D2596
    Cy7.5-PEG-DSPE (MW 10000)
    Cy7.5-PEG-DSPE (MW 10000) is a PEG phospholipid with CY7.5 (HY-D0926) dye used in protein/nucelic acid labeling and fluorescence microscopy. Cy7.5-PEG-DSPE (MW 10000) can self-assemble in aqueous solution to form micelles/lipid bilayer and used to prepare liposomes or nanoparticles for nutrients delivery such as mRNA or DNA vaccine (Ex/Em = 770/820 nm).
    Cy7.5-PEG-DSPE (MW 10000)
Cat. No. Product Name / Synonyms Application Reactivity