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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-D0483
    Direct yellow 106
    Direct yellow 106 is a good dyeing agent for cotton fabrics.
    Direct yellow 106
  • HY-D2848C
    Chitosan-Cy5.5 (MW 100000)
    Chitosan-Cy5.5 (MW 100000) is a fluorescent dye composed of CY5.5 (HY-D0924) and chitosan. Chitosan-Cy5.5 (MW 100000) can be used for bioimaging, drug delivery and biomaterial research (Ex/Em = 680/710 nm).
    Chitosan-Cy5.5 (MW 100000)
  • HY-D0473
    C.I. Direct yellow 27
    C.I. Direct yellow 27 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. Direct yellow 27
  • HY-D2848B
    Chitosan-Cy5.5 (MW 10000)
    Chitosan-Cy5.5 (MW 1000) is a fluorescent dye composed of CY5.5 (HY-D0924) and chitosan. Chitosan-Cy5.5 (MW 1000) can be used for bioimaging, drug delivery and biomaterial research (Ex/Em = 680/710 nm).
    Chitosan-Cy5.5 (MW 10000)
  • HY-W800697
    BP Fluor 430 picolyl azide
    BP Fluor 430 Picolyl Azide is an advanced fluorescent probe that incorporatess a copper-chelating motif to raise the effective concentration of Cu(I) at the reaction site. The rate of the CuAAC reaction depends on the concentrations of all reagents, including copper, therefore raising the effective copper concentration at the reaction site will dramatically increase the rate of CuAAC reaction without the need to increase concentration of azide reagent or copper. In addition, the use of BP Fluor 430 Picolyl Azide instead of conventional BP Fluor 430 Azide allows for at least a tenfold reduction in the concentration of the copper catalyst without sacrificing the efficiency of labeling. In summary, the introduction of a picolyl moiety into an azide probe leads to a substantial increase in the sensitivity of alkyne detection. This is of special value for the detection of low abundance targets or where significant increase in signal intensity is desired.
    BP Fluor 430 picolyl azide
  • HY-136870
    Kyoto probe 1
    Kyoto probe 1 is a hiPSCs fluorescent probe. Kyoto probe 1 selectively labels human pluripotent stem cells. Kyoto probe 1 is primarily explained by the distinct expression patterns of ATP-binding cassette (ABC) transporters by hiPS cells and differentiated cells.
    Kyoto probe 1
  • HY-D0652
    Disperse orange 80
    Disperse orange 80 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 orange 80
  • HY-W998687
    Cy5 dimethyl
    Cy5 dimethyl is a free non-activated dye. This dye has limited water solubility, but can be dissolved in mixtures of water with organic phase (DMF, DMSO, alcohols) to obtain useful concentrations of the material in solution. This molecule can be considered non-reactive dye for the use in control samples, and for instrument calibration.
    Cy5 dimethyl
  • HY-D0247
    Chrysophenine
    ChrysophenineCI Direct black 80 is an azo dye.
    Chrysophenine
  • HY-D2437
    DOX-PEG-Cy3
    DOX-PEG-Cy3 (Doxorubicin-PEG-Cy3) is a Cy3 (HY-D0822) labeled DOX-PEG conjugate. The Cy3 fluorophore is commonly used in applications such as immunolabeling, nucleic acid labeling, fluorescence microscopy, and flow cytometry. Cy3 has an emission maximum around 562-570 nm. DOX is a broad-spectrum anthracycline antibiotic with cytotoxic properties.
    DOX-PEG-Cy3
  • HY-D2677
    Cy7 HA (MW 100000)
    Cy7 HA (MW 100000) is a hyaluronic acid labeled with CY7 (HY-D0825). Cy7 HA (MW 100000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 740/770 nm).
    Cy7 HA (MW 100000)
  • HY-15630
    Hoechst 33342 analog 2
    		98.60%
    Hoechst 33342 analog 2 is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution.
    Hoechst 33342 analog 2
  • HY-D0433
    C.I. Vat Blue 16
    C.I. Vat Blue 16 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. Vat Blue 16
  • HY-D0611
    Disperse Yellow 86
    Disperse Yellow 86 is a yellow dye commonly used for fiber dyeing.
    Disperse Yellow 86
  • HY-D0552
    Disperse orange 62
    Disperse orange 62 is an orange-orange dye commonly used for fiber dyeing.
    Disperse orange 62
  • HY-D2675
    Cy7 HA (MW 10000)
    Cy7 HA (MW 10000) is a hyaluronic acid labeled with CY7 (HY-D0825). Cy7 HA (MW 10000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 740/770 nm).
    Cy7 HA (MW 10000)
  • HY-D2534
    Cy5-PEG-N3 (MW 3400)
    Cy5-PEG-N3 (MW 3400) is a Cy5 (HY-D0821)-azide fluorescent dye used to label for protein and nucleic acid. Cy5-PEG-N3 (MW 3400) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    Cy5-PEG-N3 (MW 3400)
  • HY-W800700
    BP Fluor 488 azide
    BP Fluor 488 Azide is a multifunctional dye. Dyes are important tools in biological experiments, helping researchers observe and analyze cell structures, track biomolecules, evaluate cell functions, distinguish cell types, detect biomolecules, study tissue pathology, and monitor microorganisms. Their applications cover a wide range of fields from basic scientific research to clinical diagnosis. Dyes are also widely used in traditional fields such as textile dyeing, as well as emerging fields such as functional textile processing, food pigments, and dye-sensitized solar cells.
    BP Fluor 488 azide
  • HY-124324
    4-Nitrophenyl β-D-cellotrioside
    4-Nitrophenyl β-D-cellotrioside (p-Nitopheyl β-D-cellotioside) is a chromogenic substrate for endoglucanases and cellulose biohydrolases. As a fluorescent dye, nitrophenyl β-D-Cellotrioside can be hydrolyzed by enzymes to release 4-nitrophenol, producing a yellow color. The activity of the enzyme can be quantitatively analyzed by monitoring the change in absorbance at 405 nm.
    4-Nitrophenyl β-D-cellotrioside
  • HY-W123012
    APN-Azide
    APN-Azide (3-(4-Azidophenyl)propiolonitrile) is a codon-active compound that can achieve specific labeling of target molecules in biological systems through its unique chemical structure. APN-Azide can be used for bioimaging and the development of molecular probes to study biological processes within cells.
    APN-Azide
Cat. No. Product Name / Synonyms Application Reactivity