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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-111956A
    D-Ala-Lys-AMCA TFA
    D-Ala-Lys-AMCA TFA is a known proton-coupled oligopeptide transporter 1 (PEPT1) substrate that emits blue fluorescence. D-Ala-Lys-AMCA TFA may be transported into liver cancer cells and Caco-2 cells based on fluorescence analysis. D-Ala-Lys-AMCA TFA can be used for characterizing PEPT1-specific substrates or inhibitors (Ex/Em = 390/480 nm).
    D-Ala-Lys-AMCA TFA
  • HY-D1767
    Tempocholine
    Tempocholine is a polar tracer.
    Tempocholine
  • HY-D1957
    ATTO 633 NHS ester
    ATTO 633 NHS ester is a new fluorescent marker based on the Rhodamine structure. It has strong absorption, high fluorescence quantum yield, high thermal stability and photochemical stability, and is suitable for single molecule detection and high-resolution microscopy. ATTO 633 NHS ester is an NHS ester derivative of ATTO 633 that can be used to label proteins or antibodies.
    ATTO 633 NHS ester
  • HY-D0450
    C.I. Pigment red 112
    C.I. Pigment red 112 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. Pigment red 112
  • HY-D2840
    FITC-mPEG (MW 350)
    FITC-mPEG (MW 350) is a fluorescent dye composed of methoxypolyethylene glycol (mPEG) and FITC (HY-66019). FITC-mPEG (MW 350) can be used for fluorescent labeling and imaging.
    FITC-mPEG (MW 350)
  • HY-D0095
    B261
    B261 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.
    B261
  • HY-D2019
    ATTO 550 NHS ester
    ATTO 550 NHS ester is a new fluorescent marker based on the Rhodamine structure. It has strong absorption, high fluorescence quantum yield, high thermal stability and photochemical stability, and is suitable for single molecule detection and high-resolution microscopy. ATTO 550 NHS ester is an NHS ester derivative of ATTO 550 that can be used to label proteins or antibodies.
    ATTO 550 NHS ester
  • HY-165424
    NIR-BG2
    NIR-BG2 is a near-infrared fluorescent probe targeting senescence-associated β-galactosidase (SA-β-Gal). NIR-BG2 is activated by SA-β-Gal and undergoes hydrolysis to release electrophilic quinone methide that covalently binds to surrounding proteins for in situ labeling, with a 16-fold enhancement of fluorescence signal at 709 nm . NIR-BG2 is promising for research of vivo imaging of cellular senescence.
    NIR-BG2
  • HY-P4465
    Gly-Arg-pNA
    Gly-Arg-pNA is a fluorogenic substrate for the measurement of protease activity. Gly-Arg-pNA undergoes hydrolysis and releases the fluorescent product p-nitroaniline. p-nitroaniline is in a fluorescent state under ultraviolet light irradiation and can emit a fluorescent signal .
    Gly-Arg-pNA
  • HY-D1867
    Sulfo-Cy3-PEG2-TCO disodium
    Sulfo-Cy3-PEG2-TCO disodium is a derivative of Cy3 (Cyanine3) (HY-D0822) dye containing sulfonate and TCO groups. The TCO groups of Sulfo-Cy3-PEG2-TCO disodium react with tetrazine functional groups in highly specific click chemistry to form covalent bonds. Thus, Sulfo-Cy3-PEG2-TCO disodium can be covalently bound to some biomolecules (especially antibodies, proteins, etc.) to track their location and dynamic changes in biological samples.
    Sulfo-Cy3-PEG2-TCO disodium
  • HY-D2228
    IR-7
    IR-7 is a mitochondria-targeted heptamethylindocyanine dye, and can used for cancer study.
    IR-7
  • HY-135414A
    Cyanine5 NHS ester bromide
    Cyanine5 NHS ester bromide is a active compound, can be used to label amino groups in peptides, proteins, and oligonucleotides. Cyanine5 NHS ester bromide is a cyanine dye, fluorescence-labeling neurotensin (8-13) via arginine residues.
    Cyanine5 NHS ester bromide
  • HY-121364
    Bodilisant
    Bodilisant is a fluorescent histamine H3 receptor ligand. Bodilisant can be used at low concentrations (1-10 nM) to detect the performance of hH3R in cells overexpressing hH3R, and at about 1 μM concentration for tissues rich in hH3R. Bodilisant is a useful pharmacological tool for receptor imaging.
    Bodilisant
  • HY-D1201
    Pigment Red 245
    Pigment Red 245 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 245
  • HY-D2134
    Cy5-PEG3-Tetrazin
    Cy5-PEG3-Tetrazin is a dye derivative of Cyanine 5 (Cy5) (HY-D0821) containing 3 PEG units. Cy5-PEG3-Tetrazin contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.
    Cy5-PEG3-Tetrazin
  • HY-151468
    AIE-Cbz-LD-C7
    AIECbz-LD-C7 is an aggregation-induced emission (AIE) probe based on the conjugation of quinoline-malononitrile (QM) and carbazole. AIECbz-LD-C7 has excellent LD-specificity. AIECbz-LD-C7 can be used for tracking the dynamic changes of LDs and studying the association between LDs and lysosome/endoplasmic reticulum (ER).
    AIE-Cbz-LD-C7
  • HY-D0922A
    Cy3.5 acetate
    Cy3.5 acetate is a fluorescent dye that can be used to label antibodies.
    Cy3.5 acetate
  • HY-D2287
    CalFluor 555 azide
    CalFluor 555 azide is a fluorogenic azide probe. CalFluor 555 azide is not fluorescent until it is reacted with alkynes (Ex=555 nm).
    CalFluor 555 azide
  • HY-D0117
    BHHCT
    BHHCT 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.
    BHHCT
  • HY-D2800B
    FITC-PEG-MAL (MW 3400)
    FITC-PEG-MAL (MW 3400) is a fluorescent dye composed of polyethylene glycol (PEG), FITC (HY-66019) and Maleimide (HY-W007324) (MAL). FITC-PEG-MAL (MW 3400) can be used for fluorescent labeling and imaging.
    FITC-PEG-MAL (MW 3400)
Cat. No. Product Name / Synonyms Application Reactivity