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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-W320397
    4-(2-Aminoethylamino)-7-(N,N-dimethylsulfamoyl)benzofurazan
    4-(2-Aminoethylamino)-7-(N,N-dimethylsulfamoyl)benzofurazan is a precolumn fluorescence derivatization reagent.
    4-(2-Aminoethylamino)-7-(N,N-dimethylsulfamoyl)benzofurazan
  • HY-D2883A
    RB-PEG600-SH
    RB-PEG600-SH (Rhodamine B-PEG600-SH) is a fluorescent dye composed of Rhodamine B (HY-Y0016), PEG and sulfhydryl (SH). SH is highly reactive and can react with a variety of functional groups (such as maleimide) to form stable thioether bonds (Ex/Em=546/610 nm).
    RB-PEG600-SH
  • HY-D2978
    MR2-cy5
    MR2-cy5 is a fluorescent agent. MR2-cy5 is highly specific to CD206. MR2-cy5 can track CD206+ macrophages.
    MR2-cy5
  • HY-177632D
    Cy3 labled Frenlosirsen sodium
    Cy3 labled Frenlosirsen sodium is a Cy3 labled Frenlosirsen sodium.
    Cy3 labled Frenlosirsen sodium
  • HY-D1920
    ATTO 390 azide
    ATTO 390 azide is an azide derivative of ATTO 390 with excitation/emission maxima at 390/476 nm. ATTO 390 azide 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.
    ATTO 390 azide
  • HY-151712
    Sulfo-Cy5-Methyltetrazine
    Sulfo-Cy5-Methyltetrazine is a click chemistry reagent containing a methyltetrazine group. Sulfo-Cy5-Methyltetrazine acts as a fluorophore linker for trans-cyclooctene-based labeling. Sulfo-Cy5-Methyltetrazine shows good stability at physiological pH and is also highly reactive towards cyclooctene.
    Sulfo-Cy5-Methyltetrazine
  • HY-D0711S2
    Indocyanine green-d7
    Indocyanine green-d7 (Foxgreen-d7) is the deuterium labeled Indocyanine green (HY-D0711). Indocyanine green is a low toxicic fluorescent agent that has been widely used in medical diagnostics, such as determining cardiac output, hepatic function, and liver blood flow, and for ophthalmic angiography.
    Indocyanine green-d<sub>7</sub>
  • HY-D1519
    Naphthalene-1,2-dicarbaldehyde
    Naphthalene-1,2-dicarbaldehyde is a fluorescent dye.
    Naphthalene-1,2-dicarbaldehyde
  • HY-N15826
    RBM1-151
    RBM1-151, a 1-deoxy derivative and vinilog of RBM14-C12 (HY-150163), as a fluorogenic substrate of Amidases (HY-P2736) (Ex/Em). RBM1-151 is hydrolyzed by acid ceramidase (AC) ((appKm = 7.0 μM; appVmax = 99.3 nM/min), N-acylethanolamine-hydrolyzing acid amidase (appKm = 0.73 μM; appVmax = 0.24 nM/min), and fatty Acid amide hydrolase (FAAH) (appKm = 3.6 μM; appVmax = 7.6 nM/min) but not by other ceramidases. RBM1-151 is applicable for basic biological studies of lipid amidase function, as well as potential diagnostic/prognostic evaluations of diseases involving dysregulated AC, NAAA, or FAAH (Farber disease, cancer).
    RBM1-151
  • HY-DY1058
    2′,7′-Dichlorofluorescein diacetate (solution)
    2′,7′-Dichlorofluorescein diacetate (DCFH2-DA) (solution) is a cell-permeable fluorescent probe. 2′,7′-Dichlorofluorescein diacetate can be used to detect the generation of reactive oxygen intermediates and for assessing the overall oxidative stress in toxicological phenomenon.
    Solvent and concentration: DMSO: 10 mM
    The 1 mL volume is defined as the base specification. All larger sizes correspond to incremental volumes of this base.
    2′,7′-Dichlorofluorescein diacetate (solution)
  • HY-D0277
    Eriochrome black T
    Eriochrome black T is a complex indicator used in complex titrations, e.g.
    Eriochrome black T
  • HY-D1142
    Acid orange 156
    Acid orange 156 is an azo dye that can be removed from aqueous solutions by metal ions.
    Acid orange 156
  • HY-177658D
    Cy3 labled Renadirsen sodium
    Cy3 labled Renadirsen sodium is a Cy3 labled Renadirsen sodium.
    Cy3 labled Renadirsen sodium
  • HY-D2076
    ATTO 740 biotin
    ATTO 740 biotin is a biotin derivative of ATTO 740 with maximum excitation/emission wavelengths: 743/763 nm.
    ATTO 740 biotin
  • HY-D1846
    Sulfo-Cy7.5 dimethyl
    Sulfo-Cy7.5 dimethyl is a dye derivative of Cyanine 7.5 (Cy7.5) (HY-D0926) with a dimethyl group. The sulfonate ion increases the water solubility of the compound, making it suitable for use in aqueous solutions. Cy7.5 is a near-infrared fluorescent dye commonly used for biolabeling and cell imaging. Sulfo-Cy7.5 dimethyl binds to biomolecules such as proteins and antibodies to track their location and dynamic changes in biological samples.
    Sulfo-Cy7.5 dimethyl
  • HY-147186
    5,5'-Difluoro BAPTA
    5,5'-Difluoro BAPTA is a difluoro-derivative of BAPTA (HY-100168). 5,5'-Difluoro BAPTA is the most widely used probe for studying cytosolic free Ca2+ by 19F NMR. 5,5'-Difluoro BAPTA has high selectivity for Ca2+. 5,5'-Difluoro BAPTA can inhibit the growth of pollen tube.
    5,5'-Difluoro BAPTA
  • HY-D0501
    Cationic red GTL
    Cationic red GTL 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 red GTL
  • HY-D1980
    ATTO 620 carboxy
    ATTO 620 Carboxy is a carboxyl derivative of ATTO 620, the maximum excitation/emission wavelength is: 620/642 nm.
    ATTO 620 carboxy
  • HY-D0790
    10-Octadecylacridine orange bromide
    10-Octadecylacridine orange (bromide) 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.
    10-Octadecylacridine orange bromide
  • HY-D0122
    6-Iodoacetamidofluorescein
    6-Iodoacetamidofluorescein, a sulphhydryl-specific fluorescent dye, and can be used to selectively label the -SH groups of nuclear matrix polypeptides and proteins.
    6-Iodoacetamidofluorescein
Cat. No. Product Name / Synonyms Application Reactivity