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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-D2796A
    FITC-PEG-OH (MW 1000)
    FITC-PEG-OH (MW 1000) is a fluorescent dye composed of polyethylene glycol (PEG), FITC (HY-66019) and a Hydroxyl group. FITC-PEG-OH (MW 1000) can be used for fluorescent labeling and imaging.
    FITC-PEG-OH (MW 1000)
  • HY-D2071
    ATTO 680
    ATTO 680 is a new type of fluorescent dye with high fluorescence yield, which can be used for most labeling applications, maximum excitation/emission wavelength: 681/698 nm.
    ATTO 680
  • HY-D0096
    3-(2-Furoyl)quinoline-2-carboxaldehyde
    3-(2-Furoyl)quinoline-2-carboxaldehyde 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.
    3-(2-Furoyl)quinoline-2-carboxaldehyde
  • HY-D1862
    Cy7.5 alkyne chloride
    Cy7.5 alkyne chloride is a dye derivative of Cyanine 7.5 (Cy7.5) (HY-D0926) containing a sulfonate ion and an alkyne functional group. Cy7.5 is a near-infrared fluorescent dye commonly used for biolabeling and cell imaging. The alkyne functional group of Cy7.5 alkyne chloride can react with molecules containing the azide functional group to form covalent bonds. Cy7.5 alkyne chloride can bind to biological molecules such as proteins and antibodies to track their location and dynamic changes in biological samples.
    Cy7.5 alkyne chloride
  • HY-D1595
    BODIPY FL Cholesterol
    BODIPY FL Cholesterol is a green fluorescent, lipophilic probe. BODIPY FL Cholesterol can be used for the research of lipid transport processes and lipid-protein interactions.
    BODIPY FL Cholesterol
  • HY-D2170
    AF488 streptavidin
    AF488 streptavidin is a fluorescence labeled streptavidin. AF488 streptavidin comprises a biotin-binding protein (streptavidin) covalently attached to a fluorescent label (AF488). AF488 is a bright, photostable green fluorophore, exhibits the λem and λex wavelength of 520 nm and 470 nm, respectively.
    AF488 streptavidin
  • HY-172534
    BPN-01
    BPN-01 is a fluorescent probe targeting translocator protein (TSPO) and human epidermal growth factor receptor 2 (HER2) with binding affinities of -10.7 kcal/mol for TSPO and -11.3 kcal/mol for HER2. BPN-01 is promising for research of solid tumor imaging during fluorescence image-guided surgery (FIGS) (Ex/Em = 475/510 nm).
    BPN-01
  • HY-D2064
    ATTO 680 streptavidin
    ATTO 680 streptavidin is a streptavidin derivative of ATTO 680, it can label protein or antibody, the maximum excitation/emission wavelength: 681/698 nm.
    ATTO 680 streptavidin
  • HY-D1921
    ATTO 390 iodoacetamide
    ATTO 390 iodoacetamide is the iodoacetamide derivative of ATTO 390, the maximum excitation/emission wavelength: 390/476 nm.
    ATTO 390 iodoacetamide
  • HY-D1663
    APTAB
    APTAB is a fluorescent cationic membrane probe. APTAB locates the anthracene-labeled molecules incorporated into model membranes by fluorescence quenching.
    APTAB
  • HY-P3576
    Biotin-Gastrin Releasing Peptide, human
    Biotin-Gastrin Releasing Peptide, human is a biotinylated gastrin releasing peptide (GRP). Gastrin-releasing peptide (GRP) is a neuropeptide with growth-stimulatory and tumorigenic properties.
    Biotin-Gastrin Releasing Peptide, human
  • HY-D1607
    BODIPY FL SSE
    BODIPY FL SSE is a potent fluorescent dye. BODIPY FL SSE is used to label the primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. BODIPY FL SSE can reactive with primary amines on biomolecules to emit green fluorescence. (λex=502 nm, λem=511 nm).
    BODIPY FL SSE
  • HY-D1497
    Fluorescent Red Mega 480
    Fluorescent Red Mega 480 is a dye that is specifically designed for multicolor techniques. Fluorescent Red Mega 480 is characterized by an extremely large stoke′s shift between excitation and emission maxima.
    Fluorescent Red Mega 480
  • HY-147508
    SBP-2
    SBP-2 is a sulfite bioluminescent probe (SBP). The recognition of SBP-2 towards sulfite is based on the mechanism of a sulfite-mediated intramolecular cleavage reaction.
    SBP-2
  • HY-D2881H
    RB-PEG-COOH (MW 10000)
    RB-PEG-COOH (MW 10000) (Rhodamine B-PEG-COOH (MW 10000)) is a fluorescent dye composed of Rhodamine B (HY-Y0016), PEG and a COOH. RRB-PEG-COOH (MW 10000) can be used for fluorescent labeling and imaging (Ex/Em = 546/610 nm).
    RB-PEG-COOH (MW 10000)
  • HY-D2181
    Preactivated PE-Cy5.5 Maleimide
    Preactivated PE-Cy5.5 Maleimide is a Preactivated PE-Cy5.5 Maleimide, which is a dye that can be used to label molecules such as dye that can be used to label molecules such as antibodies.
    Preactivated PE-Cy5.5 Maleimide
  • HY-137928
    H-Ala-4MβNA hydrochloride
    H-Ala-4MβNA hydrochloride is a specific fluorogenic substrate for aminopeptidase M.
    H-Ala-4MβNA hydrochloride
  • HY-P3477
    Mca-PLA-Nva-Dap(Dnp)-AR-NH2
    Mca-PLA-Nva-Dap(Dnp)-AR-NH2 is a fluorogenic substrate for matrix metalloproteinase-2 (MMP-2) .
    Mca-PLA-Nva-Dap(Dnp)-AR-NH2
  • HY-D2188
    IMP-2373
    IMP-2373 is the activity-based probe (ABP). IMP-2373 is a covalent pan- deubiquitinase(DUB) ABP to monitor DUB activity in physiologically relevant live cells.
    IMP-2373
  • HY-D2825
    Chitosan-Cy7.5 (MW 100000)
    Chitosan-Cy7.5 (MW 100000) is a Chitosan labeled with Cy7.5 (HY-D0926). Chitosan-Cy7.5 (MW 100000) can be used for fluorescent labeling and imaging.
    Chitosan-Cy7.5 (MW 100000)
Cat. No. Product Name / Synonyms Application Reactivity