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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-D1241
    Janus red
    Janus red is a basic dye.
    Janus red
  • HY-D0303AS
    Chrysoidine G-d5 hydrochloride
    Chrysoidine G-d5 hydrochloride (Solvent Orange 3-d5 hydrochloride) is the deuterium labeled Chrysoidine G (HY-D0303A). Chrysoidine G (Solvent Orange 3 hydrochloride) is an industrial azoic dye (cationic dye). Chrysoidine G (Solvent Orange 3 hydrochloride) is used for the construction of most textile dyestuffs and also in synthetic industrial compounds. Chrysoidine G (Solvent Orange 3 hydrochloride) concentration can be determined by UV-Vis spectroscopy.
    Chrysoidine G-d<sub>5</sub> hydrochloride
  • HY-D1814
    Vari Fluor 640-dUTP
    		98.0%
    Vari Fluor 640-dUTP (VF 640-dUTP) is enzymatically incorporated into DNA/cDNA and can replace its natural counterpart, dTTP. Vari Fluor 555-dUTP can be used to produce biotinylated DNA probes in a variety of assay applications.
    Vari Fluor 640-dUTP
  • HY-D1762
    Styryl 6
    Styryl 6 is a laser dye.
    Styryl 6
  • HY-N16316
    Meso-Cl cyanine 7 free acid chloride
    Meso-Cl cyanine 7 free acid chloride is a Meso-Cl cyanine fluorescent dye. Meso-Cl cyanine 7 free acid chloride can be used for labelling amine groups such as those on antibodies, nucleic acids, and proteins and can be detected using a variety of fluorescence detection techniques such as microscopy and flow cytometry (Ex/Em = 778/805 nm).
    Meso-Cl cyanine 7 free acid chloride
  • HY-D1119A
    AF647-NHS ester tripotassium
    AF647-NHS ester tripotassium is an analogue of Alexa Fluor 647 (AF647) (HY-D1119). NHS ester can covalently bind to molecules with amino groups (such as proteins, antibodies, etc.). AF647 is a bright, far-red fluorescent dye with an excitation wavelength (λex) of 635 nm (conventional fluorescence detection)/620 nm (instantaneous detection). Storage: protect from light.
    AF647-NHS ester tripotassium
  • HY-D1483
    3,3-Dibutylthiacarbocyanine iodide
    3,3-Dibutylthiacarbocyanine iodide is a fluorescent dye with an excitation of 559 nm and an emission 604 nm.
    3,3-Dibutylthiacarbocyanine iodide
  • HY-177631C
    FAM labled Etidaligide sodium
    FAM labled Etidaligide sodiumis a FAM labled Etidaligide sodium.
    FAM labled Etidaligide sodium
  • HY-D0258
    Alizarin Yellow R sodium
    Alizarin Yellow R sodium 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.
    Alizarin Yellow R sodium
  • HY-147206B
    Biotin-PEG2000-Alk
    Biotin-PEG2000-Alk is a biotin labeled PEG derivative. Biotin is an enzyme co-factor, can be used for labeling protein; PEG is a hydrophilic and water-soluble polymer with low toxicity; Alk (Alkyne), acyclic (branched or unbranched) aliphatic hydrocarbon, can react with azido, which improve the efficiency of biotin binding targets. Biotin-PEG2000-Alk is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Biotin-PEG2000-Alk
  • HY-P11637
    Mitochondrial-targeted peptide BP19
    Mitochondrial-targeted peptide BP19 is a fluorescent probe for the selective measurement of labile iron in the mitochondriairon. Mitochondrial-targeted peptide BP19 exhibits iron-selective sensing activity with mitochondrial accumulation, reduced fluorescence in iron-loaded cells, and fluorescence reinstatement upon iron chelation. Mitochondrial-targeted peptide BP19 evaluates mitochondrial labile iron levels in cultured fibroblasts with Friedreich's ataxia.
    Mitochondrial-targeted peptide BP19
  • HY-119581
    MBED
    MBED (9-Methyl-7-bromoeudistomin D) is a RyR agonist. MBED is a high-affinity caffeine-like probe, helps identify the caffeine-binding site in RyRs.
    MBED
  • HY-D2881A
    RB-PEG600-COOH
    RB-PEG600-COOH (Rhodamine B-PEG600-COOH) is a fluorescent dye composed of Rhodamine B (HY-Y0016), PEG and a COOH. RRB-PEG600-COOH can be used for fluorescent labeling and imaging (Ex/Em=546/610 nm).
    RB-PEG600-COOH
  • HY-D0044
    5(6)-Carboxy-X-rhodamin N-succinimidyl ester
    5(6)-Carboxy-X-rhodamin N-succinimidyl ester 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.
    5(6)-Carboxy-X-rhodamin N-succinimidyl ester
  • HY-W009686F
    5-FAM-Pro-Leu-OH
    5-FAM-Pro-Leu-OH is a biological active peptide. (Used as MMP fluorescent reference standard)
    5-FAM-Pro-Leu-OH
  • HY-D0919
    NIR-Red Dead Cell-3 Dye
    NIR-Red Dead Cell-3 Dye 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.
    NIR-Red Dead Cell-3 Dye
  • HY-D0553
    Cationic golden yellow 2K
    Cationic golden yellow 2K 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.
    Cationic golden yellow 2K
  • HY-D1561
    FG 488 BAPTA-2 AM
    FG 488 BAPTA-2 AM is a calcium-specific reporter dye. FG 488 BAPTA-2 AM can be used to detect calcium concentration.
    FG 488 BAPTA-2 AM
  • HY-W998644
    PB LC acid
    PB LC acid is a blue-fluorescent dye that is reactive with primary amines on biomolecules such as peptides, proteins, modified nucleotides and biopolymers (Ex/Em = 410/455 nm).
    PB LC acid
  • HY-P3950
    Fluorescent Substrate for Asp-Specific Proteases
    Fluorescent Substrate for Asp-Specific Proteases is a substrate to cleave specifically the Asp-Val bond.
    Fluorescent Substrate for Asp-Specific Proteases
Cat. No. Product Name / Synonyms Application Reactivity