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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-D2226
    Sulfo-Cy5-PEG3-Biotin
    Sulfo-Cy5-PEG3-Biotin is a fluorescent dye.
    Sulfo-Cy5-PEG3-Biotin
  • HY-175123
    3'-O-(5-Chloroanthraniloyl)-2'-deoxyadenosine-5'-O-triphosphate sodium
    3'-O-(5-Chloroanthraniloyl)-2'-deoxyadenosine-5'-O-triphosphate (sodium) is a fluorescently labeled derivative of 2'-deoxyadenosine triphosphate (dATP). 3'-O-(5-Chloroanthraniloyl)-2'-deoxyadenosine-5'-O-triphosphate (sodium) can be used as a probe.
    3'-O-(5-Chloroanthraniloyl)-2'-deoxyadenosine-5'-O-triphosphate sodium
  • HY-D1278
    4-(5)-(((4-ChloroMethyl)Benzoyl)AMino)TetraMethylrhodaMine
    4-(5)-(((4-ChloroMethyl)Benzoyl)AMino)TetraMethylrhodaMine 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.
    4-(5)-(((4-ChloroMethyl)Benzoyl)AMino)TetraMethylrhodaMine
  • HY-D0560
    C.I. Pigment red 247
    C.I. Pigment red 247 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.
    C.I. Pigment red 247
  • HY-160066B
    FAM labled SYL3C aptamer sodium
    FAM labled SYL3C aptamer sodiumis a FAM labled SYL3C aptamer sodium.
    FAM labled SYL3C aptamer sodium
  • HY-D2846A
    m-PEG2000-PEI2000-Cy5
    m-PEG2000-PEI2000-Cy5 is a fluorescent dye composed of CY5 (HY-D0821), methoxypolyethylene glycol (mPEG), and polyethyleneimine (PEI). m-PEG2000-PEI2000-Cy5 is used for gene delivery, nanodrug delivery, cell imaging and biosensing and bioanalysis (Ex/Em=633/670 nm).
    m-PEG2000-PEI2000-Cy5
  • HY-D1307
    Sulfo-cyanine7 alkyne
    Sulfo-cyanine7 alkyne is a water-soluble near-infrared dye with a sulfonated terminal alkyne that can be used in copper-catalyzed click chemistry reactions to conjugate with azides in an aqueous environment.
    Sulfo-cyanine7 alkyne
  • HY-D2850
    Heparin-Cy5.5
    Heparin-Cy5.5 is a fluorescent dye composed of CY5.5 (HY-D0924) and heparin. Heparin-CY5.5 is used to study the localization and distribution of heparin in vivo and its interaction with other biomolecules (Ex/Em = 680/710 nm).
    Heparin-Cy5.5
  • HY-D2767
    MB 660R NHS Ester
    MB 660R NHS Ester is a fluroescent agent with a terminal NHS ester group.MB 660R NHS Ester is a far-red fluorescent dye that has a maximal absorption of 665 nm and emission at 690 nm. The NHS ester can be applied to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
    MB 660R NHS Ester
  • HY-D2215
    Mito-CCY
    Mito-CCY is a mitochondria-targeted, NIR-absorbing cryptocyanine probe. Mito-CCY displays a high photothermal conversion efficiency, good biological compatibility in vitro, and photoinduced cytotoxicity in HeLa cells.
    Mito-CCY
  • HY-D0476
    C.I. Acid yellow 99
    C.I. Acid yellow 99 is an acidic yellow dye that combines with coconut shell pith through electrostatic and complexing reactions.
    C.I. Acid yellow 99
  • HY-126821B
    Fluo-3 sodium
    Fluo-3 sodium is a cell-impermeable calcium ion (Ca2+) indicator. Fluo-3 sodium itself is not fluorescent, but it becomes fluorescent after binding to calcium ions (Ex/Em = 488/525 nm).
    Fluo-3 sodium
  • HY-164419D
    Cy3 labled Atesidorsen sodium
    Cy3 labled Atesidorsen sodium is a Cy3 labled Atesidorsen sodium.
    Cy3 labled Atesidorsen sodium
  • HY-D0410
    C.I. Acid yellow 200
    C.I. Acid yellow 200 is an acidic yellow dye that can be adsorbed and removed by bentone.
    C.I. Acid yellow 200
  • HY-D0463
    Disperse yellow 54
    Disperse yellow 54 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.
    Disperse yellow 54
  • HY-160066C
    Cy3 labled SYL3C aptamer sodium
    Cy3 labled SYL3C aptamer sodium is a Cy3 labled SYL3C aptamer sodium.
    Cy3 labled SYL3C aptamer sodium
  • HY-179777
    C11-BODIPY 505/515 Glucosyl ceramide
    C11-BODIPY 505/515 Glucosyl ceramide is a C11-BODIPY 505/515-labeled Glucosyl ceramide that can be used to prepare lipid nanoparticles for drug delivery (Ex/Em = 505/515 nm).
    C11-BODIPY 505/515 Glucosyl ceramide
  • HY-W800775
    BP Fluor 647 Alkyne
    BP Fluor 647 Alkyne is a bright green-fluorescent dye optimal for use with the 633, 650 nm Argon laser. The alkyne group can react with azides via copper catalyzed Click Chemistry reactions. The dye is water soluble and pH-insensitive from pH 4 to pH 10. The dye has 4 sulfonate groups which make it highly water soluble and cause less aggregation in the aqueous solution. BP Fluor 647 Alkyne is used for protein and antibody labeling, or nucleic acid applications with high labeling density.
    BP Fluor 647 Alkyne
  • HY-D2662
    Cy5.5 HA (MW 200000)
    Cy5.5 HA (MW 200000) 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 200000)
  • HY-D2459
    Alexa Fluor 430 NHS ester
    Alexa Fluor 430 NHS ester is a compound that couples green fluorescent dye Alexa Fluor 430 to a protein or antibody. Alexa Fluor 430 is used for the generation of stable signals in imaging and flow cytometry. NHS ester can be used to label proteins, amine-modified oligonucleotides and other primary amines (R-NH2) containing amine molecules.
    Alexa Fluor 430 NHS ester
Cat. No. Product Name / Synonyms Application Reactivity