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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-D2460
    Dextran-CY5.5
    Dextran-CY5.5 is a CY5.5 (HY-D0924) labeled Dextran (HY-112624) conjugate. CY5.5 is a Cyanine dye (The excitation wavelength is usually 673 nm and the emission wavelength is 707 nm) that can be used for the labeling of proteins, antibodies and small molecular compounds. Dextran has an inhibitory effect on thrombocyte aggregation and coagulation factors and is used as a plasma volume expander.
    Dextran-CY5.5
  • HY-D2665
    Cy5.5 HA MA (MW 5000)
    Cy5.5 HA MA (MW 5000) is a hyaluronic acid methacrylate labeled with CY5.5 (HY-D0924). Cy5.5 HA MA (MW 5000) is widely used in the fields of biolabeling and imaging, drug delivery and tissue engineering and regenerative medicine (Ex/Em = 680/710 nm).
    Cy5.5 HA MA (MW 5000)
  • HY-D0559
    C.I. Disperse blue 284
    C.I. Disperse blue 284 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. Disperse blue 284
  • HY-112498A
    Cy3 NHS ester bromide
    Cy3 NHS ester bromide is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
    Cy3 NHS ester bromide
  • HY-D2858A
    8-arm-PEG20000-FITC
    8-arm-PEG20000-FITC is a fluorescent dye composed of FITC (HY-66019) and eight-arm polyethylene glycol (8-Arm PEG). 8-arm-PEG-FITC can be used to modify proteins, peptides and other materials with active groups (Ex/Em=488/525 nm).
    8-arm-PEG20000-FITC
  • HY-D2597
    Cy7.5-PEG2000-biotin
    Cy7.5-PEG2000-biotin is a biotinylated hyaluronic acid labeled with CY7.5 (HY-D0926). Cy7.5-PEG2000-biotin is widely used for cell imaging and in vivo imaging of shallow tissues (Ex/Em=770/820 nm).
    Cy7.5-PEG2000-biotin
  • HY-153483D
    FAM labled Bamosiran sodium
    FAM labled Bamosiran sodiumis a FAM labled Bamosiran sodium.
    FAM labled Bamosiran sodium
  • HY-W750435
    New Red
    New Red is a color additive that can be used to dye flour as well as meat products.
    New Red
  • HY-W330621
    2-Chloro-4-nitrophenyl-α-D-glucopyranoside
    2-Chloro-4-nitrophenyl-α-D-glucopyranoside (CNP-α-D-Glucopyaoside) as a chromogenic substrate for the enzymatic activity assay of the enzyme that releases CNP from conjugated carbohydrates.
    2-Chloro-4-nitrophenyl-α-D-glucopyranoside
  • HY-D0616
    Pigment Yellow 182
    Pigment Yellow 182 is a disazomethine dye with solid-state fluorescence.a biologically active chemical.
    Pigment Yellow 182
  • HY-D0596
    Pigment Red 188
    Pigment Red 188 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 188
  • HY-W800692
    BP Fluor 350 azide
    BP Fluor 350 Azide is a blue-fluorescent, azide-activated probe that reacts with terminal alkynes via a copper-catalyzed click reaction (CuAAC). It also reacts with strained cyclooctyne via a copper-free click chemistry reaction to form a stable triazole and does not require Cu-catalyst or elevated temperatures. BP Fluor 350 is a water-soluble, moderately photostable, blue-fluorescent probe optimally excited by the 350 nm laser line. It is routinely used for generation of stable signal in imaging and flow cytometry. The brightness and photostability of blue dyes are best suited to direct imaging of high-abundance targets.
    BP Fluor 350 azide
  • HY-175121
    3'-O-(5-Chloroanthraniloyl)-2'-deoxyguanosine-5'-O-triphosphate sodium
    3'-O-(5-Chloroanthraniloyl)-2'-deoxyguanosine-5'-O-triphosphate (sodium) is a fluorescent nucleotide triphosphate analog.
    3'-O-(5-Chloroanthraniloyl)-2'-deoxyguanosine-5'-O-triphosphate sodium
  • HY-D0287
    Solvent red 52
    Solvent red 52 is a red dye. Its series of products, such as Solvent orange 60 (HY-D1177), has been used in dyeing applications of plastic materials.
    Solvent red 52
  • HY-D0345
    Pigment Red 178
    Pigment Red 178 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 178
  • HY-D2529
    Cy5-PEG2000-SH
    Cy5-PEG2000-SH 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-PEG2000-SH
  • HY-D1303
    Marina blue
    Marina blue 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.
    Marina blue
  • HY-D0497R
    C.I. Disperse orange 37 (Standard)
    C.I. Disperse orange 37 (Standard) is the analytical standard of C.I. Disperse orange 37. This product is intended for research and analytical applications. C.I. Disperse orange 37 is an orange-orange dye commonly used for fiber dyeing.
    C.I. Disperse orange 37 (Standard)
  • HY-D0082R
    7-Diethylamino-4-methylcoumarin (Standard)
    7-Diethylamino-4-methylcoumarin (Standard) is the analytical standard of 7-Diethylamino-4-methylcoumarin. This product is intended for research and analytical applications. 7-Diethylamino-4-methylcoumarin is a laser dye.
    7-Diethylamino-4-methylcoumarin (Standard)
  • HY-171764
    β-Ethoxy-α-ketobutyraldehyde
    β-Ethoxy-α-ketobutyraldehyde is a chemical probe. β-Ethoxy-α-ketobutyraldehyde specifically modifies the N1 and N2 positions of guanine. β-Ethoxy-α-ketobutyraldehyde is mainly used to study the steric protection of single-stranded/double-stranded regions of nucleic acids and protein binding sites. β-Ethoxy-α-ketobutyraldehyde can be used for nucleic acid structure analysis and footprint studies of protein-nucleic acid complexes.
    β-Ethoxy-α-ketobutyraldehyde
Cat. No. Product Name / Synonyms Application Reactivity