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-D0461
    beta-Naphthol violet
    beta-Naphthol violet 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.
    beta-Naphthol violet
  • HY-W248119
    8-(4-Iodophenyl)-1,3,5,7-tetramethyl BODIPY
    8-(4-Iodophenyl)-1,3,5,7-tetramethyl BODIPY is a BODIPY derivative that can be used as a fluorescent probe for GFP-labeled muscarinic M1 receptor.
    8-(4-Iodophenyl)-1,3,5,7-tetramethyl BODIPY
  • HY-D0380
    Pigment Yellow 109
    Pigment Yellow 109 is a disazomethine dye with solid-state fluorescence.a biologically active chemical.
    Pigment Yellow 109
  • HY-D0384
    Pigment Red 144
    Pigment Red 144 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 144
  • HY-W998679
    Biotin (5-fluorescein) conjugate
    Biotin (5-fluorescein) conjugate (N-(Fluorescein-5-carbamidoethyl)biotinamide) is a fluorescently labeled biotin derivative with high cell labeling activity. Biotin (5-fluorescein) conjugate can be used to detect and locate target molecules in biomedical research. Biotin (5-fluorescein) conjugate is widely used in immunofluorescence staining experiments to improve the sensitivity and specificity of the experiment.
    Biotin (5-fluorescein) conjugate
  • HY-D2542
    Cy5-PEG-DSPE (MW 2000)
    Cy5-PEG-DSPE (MW 2000) is a PEG phospholipid with Cy5 (HY-D0821) dye used in protein/nucelic acid labeling and fluorescence microscopy. Cy5-PEG-DSPE (MW 2000) 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-PEG-DSPE (MW 2000)
  • HY-D0446
    C.I. Acid orange 33
    C.I. Acid orange 33 is an acidic orange-yellow dye that can be adsorbed and removed by bentone.
    C.I. Acid orange 33
  • HY-D2359
    Glucosamine-FITC
    Glucosamine-FITC is FITC-labeled Glucosamine (HY-B1125). Glucosamine-FITC can be used to localize Glucosamine in living cells.
    Glucosamine-FITC
  • HY-D2691
    Cy7.5 HA (MW 7000)
    Cy7.5 HA (MW 7000) is a hyaluronic acid labeled with CY7.5 (HY-D0926). Cy7.5 HA (MW 7000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 770/820 nm).
    Cy7.5 HA (MW 7000)
  • HY-D2477
    Sulfo-QSY21-NHS
    Sulfo-QSY21-NHS is a fluorescent dye, which contains a NHS group that can react with amine groups (-NH2) in proteins or other molecules to form stable amide bonds. Sulfo-QSY21-NHS can be used in the synthesis of activity-based probes (ABPs).
    Sulfo-QSY21-NHS
  • HY-D0575
    Disperse violet 93
    Disperse violet 93 is a violet dye commonly used for fiber dyeing.
    Disperse violet 93
  • HY-D2692
    Cy7.5 HA (MW 10000)
    Cy7.5 HA (MW 10000) is a hyaluronic acid labeled with CY7.5 (HY-D0926). Cy7.5 HA (MW 10000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 770/820 nm).
    Cy7.5 HA (MW 10000)
  • HY-D0490
    C.I. Acid yellow 49
    C.I. Acid yellow 49 is an acidic yellow dye that can be adsorbed and removed by bentone.
    C.I. Acid yellow 49
  • HY-D2663
    Cy5.5 HA (MW 500000)
    Cy5.5 HA (MW 500000) is a hyaluronic acid labeled with CY5.5 (HY-D0924). Cy5.5 HA (MW 200000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 680/710 nm).
    Cy5.5 HA (MW 500000)
  • HY-D2712
    Cy3 Dextran (MW 500000)
    Cy3 Dextran (MW 500000) 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 500000)
  • HY-W856375
    (E)-BSPOTPE
    (E)-BSPOTPE is the E configuration of BSPOTPE (HY-W856375A). BSPOTPE binds Human serum albumin (HSA) (HY-P1956), exhibits aggregation-induced emission (AIE) phenomenon. BSPOTPE shows selectivity for albumin (such as HSA and BSA), but has no obvious fluorescence response to other proteins and DNA. BSPOTPE can be used as fluorescent probe for HSA.
    (E)-BSPOTPE
  • HY-D0408
    C.I. Pigment red 38
    C.I. Pigment red 38 is the most important colorant used to add color or change the color of something and is chemically essentially unaffected by the carrier or medium into which it is incorporated. It can be widely used in textile, medicine, food, cosmetics, plastics, paint, ink, photography and paper industries.
    C.I. Pigment red 38
  • HY-D0745
    Acid red 405
    Acid red 405 is an acid dye that can be decolorized when aluminum sulfate is used as a coagulant.
    Acid red 405
  • HY-D2221
    Sulfo-Cy3 dUTP
    Sulfo-Cy3 dUTP is a dUTP fluorescent dye containing sulfonated Cyanine3 group.
    Sulfo-Cy3 dUTP
  • HY-D1339
    Cyanine7 hydrazide dichloride
    Cyanine7 hydrazide dichloride belongs to the cyanine dye series and is a common fluorescent marker for biomolecules that can interact with biomolecules. Cyanine dyes may also bind to double-helical DNA through intercalation and exhibit enhanced fluorescence upon binding.
    Cyanine7 hydrazide dichloride
Cat. No. Product Name / Synonyms Application Reactivity