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-175127
    N-Dodecanoyl-L-homoserine lactone-3-hydrazone-fluorescein
    N-Dodecanoyl-L-homoserine lactone-3-hydrazone-fluorescein is a fluorescently-tagged probe. N-Dodecanoyl-L-homoserine lactone-3-hydrazone-fluorescein can be used in the research of O-DDHSL and 3O-C12-HSL detection.
    N-Dodecanoyl-L-homoserine lactone-3-hydrazone-fluorescein
  • HY-D2595
    Cy7.5-PEG5000-DSPE
    Cy7.5-PEG5000-DSPE is a PEG phospholipid with CY7.5 (HY-D0926) dye used in protein/nucelic acid labeling and fluorescence microscopy. Cy7.5-PEG5000-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 (Ex/Em=770/820 nm).
    Cy7.5-PEG5000-DSPE
  • HY-D0462
    Direct Yellow 44
    Direct Yellow 44 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.
    Direct Yellow 44
  • HY-D2703
    Cy7.5 HA biotin (MW 5000)
    Cy7.5 HA biotin (MW 5000) is a biotinylated hyaluronic acid labeled with CY7.5 (HY-D0926). Cy7.5 HA biotin (MW 5000) is widely used for cell imaging and in vivo imaging of shallow tissues (Ex/Em = 770/820 nm).
    Cy7.5 HA biotin (MW 5000)
  • HY-W998643
    6, 8-Difluoro-7-hydroxy-4-methylcoumarin NHS ester
    6,8-Difluoro-7-hydroxy-4-methylcoumarin NHS Ester is a molecule with an excitation at 365 nm and emission at 460 nm. The NHS ester can be applied to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
    6, 8-Difluoro-7-hydroxy-4-methylcoumarin NHS ester
  • HY-D0931R
    Sudan III (Standard)
    Sudan III (Standard) is the analytical standard of Sudan III. This product is intended for research and analytical applications. Sudan III is a hydrophobic bisazo dye.
    Sudan III (Standard)
  • HY-D0475
    C.I.Solvent yellow 176
    C.I.Solvent yellow 176 is a quinoline dye.
    C.I.Solvent yellow 176
  • HY-D0416
    Disperse yellow 9
    Disperse yellow 9 is a yellow dye commonly used for fiber dyeing.
    Disperse yellow 9
  • HY-D0375
    Pigment Yellow 17
    Pigment Yellow 17 is a disazomethine dye with solid-state fluorescence.a biologically active chemical.
    Pigment Yellow 17
  • HY-D0101
    Fluorescein-diphosphat diammonium
    Fluorescein-diphosphat (diammonium) is a colorimetric probe formed by the reaction of adipic acid dihydrazide and fluorescein isothiocyanate.
    Fluorescein-diphosphat diammonium
  • HY-149765
    Bone-1064
    Bone-1064 is a EuK-based PSMA tetramer bone probe for high-contrast visualization of bone in surrounding tissue. Bone-1064 specifically binds hydroxyapatite in bone tissue and can be used for NIR-II fluorescence imaging in animal models.
    Bone-1064
  • HY-D0572
    Acid red 260
    Acid red 260 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.
    Acid red 260
  • HY-101894R
    Dihydrorhodamine 123 (Standard)
    Dihydrorhodamine 123 (Standard) is the analytical standard of Dihydrorhodamine 123 (HY-101894). This product is intended for research and analytical applications. Dihydrorhodamine 123 (DHR 123) is a non-fluorescent reactive oxygen species (ROS) indicator. Dihydrorhodamine 123 is oxidized to fluorescent Rhodamine 123 (HY-D0816) within cells in the presence of reactive oxygen species and it localizes in mitochondria (Ex/Em = 515/536 nm).
    Dihydrorhodamine 123 (Standard)
  • HY-D1390
    Sulfo-Cy5-Mal potassium
    Sulfo-Cy5-Mal potassium is a fluorescent dye derivative composed of a CY5 dye and a maleimide functional group. Sulfo-Cy5-Mal potassium specifically covalently binds to thiol-containing (-SH) biomolecules. Sulfo-Cy5-Mal potassium can be used for protein labeling, antibody conjugation, molecular imaging, and drug delivery studies (Ex/Em = 633 nm/670 nm).
    Sulfo-Cy5-Mal potassium
  • HY-D0337
    Pigment Red 4
    Pigment Red 4 is a commonly used commercial dye for bulk coloring of plastics and synthetic fibers and for surface coatings such as paints and inks.
    Pigment Red 4
  • HY-W344938
    C.I. Acid yellow 3
    C.I. Acid yellow 3 is an anionic quinolinone dye that is commonly used as a food additive, but also in the cosmetic and pharmaceutical industries.
    C.I. Acid yellow 3
  • HY-158823D
    Cy3 labled GTI-2501 sodium
    Cy3 labled GTI-2501 sodium is a Cy3 labled GTI-2501 sodium.
    Cy3 labled GTI-2501 sodium
  • HY-D0528
    Disperse brown 1
    Disperse brown 1 is a brown dye commonly used for fiber dyeing.
    Disperse brown 1
  • HY-D0436
    C.I. Direct black 32
    C.I. Direct black 32 is a good dyeing agent for cotton fabrics.
    C.I. Direct black 32
  • HY-D1335
    TAMRA amine, 5-isomer
    TAMRA amine, 5-isomer is an isomer of TAMRA, a xanthene dye with orange emission.
    TAMRA amine, 5-isomer
Cat. No. Product Name / Synonyms Application Reactivity