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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-D2243
    Cy3.5 tetrazine
    Cy3.5 tetrazineis a Tetrazine modified Cy3.5 fluorescent dye. SiR-tetrazine is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.
    Cy3.5 tetrazine
  • HY-D0439
    C.I. Mordant yellow 12
    C.I. Mordant yellow 12 is an azo dye.
    C.I. Mordant yellow 12
  • HY-W878608
    Cyanine7 azide
    Cyanine7 azide is a potent fluorescent dye. Cyanine7 azide can be used for NIR live organism imaging (λex=756 nm, λem=779 nm). Cyanine7 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.
    Cyanine7 azide
  • HY-D0110B
    Fura-2 pentasodium
    Fura-2 pentasodium is a scaled fluorescent dye that can be used for intracellular calcium imaging with the Kd value of 140 nM. Fura-2 pentasodium has an emission wavelength of 510 nm and excitation wavelengths of 340 nm or 380 nm and the ratio of 340/380 fluorescence intensity is proportional to the intracellular Ca2+ level.
    Fura-2 pentasodium
  • HY-W140934
    Tris(4-aminophenyl)methanol
    Tris 4-aminophenyl methanol is a triamino-triphenylmethane chloride alkaline dye used to prepare Schiff reagent.
    Tris(4-aminophenyl)methanol
  • HY-D0513
    Disperse red 65
    Disperse red 65 is a red dye derived from anthraquinone. It is used in plastics, textiles and cosmetics.
    Disperse red 65
  • HY-137023
    Sulfo-Cy7 amine
    Sulfo-Cy7 amine is a cyanine containing a free amine group, which can be conjugated with a variety of functionalities, including NHS esters, and epoxides. This NIR dye amine can be used to derivate various targets by the reaction with electrophilic groups, and also by enzymatical reactions involving transamination.
    Sulfo-Cy7 amine
  • HY-D0269
    1-Amino-4-hydroxyanthraquinone
    1-Amino-4-hydroxyanthraquinone is a red dye used as a fluorescent indicator.
    1-Amino-4-hydroxyanthraquinone
  • HY-123583
    MitoBADY
    MitoBADY is a mitochondria-selective Raman probe that successfully visualizes mitochondria in live HeLa cells at a concentration of 200-400 nM for 10 minutes. MitoBADY can be utilized for the study of mitochondrial dynamics.
    MitoBADY
  • HY-D0493
    C.I. Pigment yellow 62
    C.I. Pigment yellow 62 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 yellow 62
  • HY-D2439
    RGD-PEG-Cy3
    RGD-PEG-Cy3 is a fluorescent labeling reagent that combines Cy3 fluorescent dye, peptide (RGD) and polyethylene glycol (PEG). 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. RGD is a peptide sequence (CRGDKGPDCiRGD) that binds to αvβ3 and αvβ5 integrin receptors on tumor neovasculogenesis to achieve specific tumor tissue targeting.
    RGD-PEG-Cy3
  • HY-155395
    DDAN-MT
    DDAN-MT is an enzymatic activated near-infrared fluorescent probe. DDAN-MT can be used for rapid, highly selective, and real-time monitoring of endogenous MtMET-AP1 activity in M. tuberculosis.
    DDAN-MT
  • HY-D2247
    ICG-CBT
    ICG-CBT is a mixture of Indocyanine Green (ICG) and Cetyltrimethylammonium Bromide (CBT). ICG-CBT can be applied to both in vivo and in vitro to observe the structure and function of cells or tissues.
    ICG-CBT
  • HY-D0313
    Ethyl 8'-apo-caroten-8'-oate
    Ethyl 8'-apo-caroten-8'-oate 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.
    Ethyl 8'-apo-caroten-8'-oate
  • HY-W879008
    DiSulfo-ICG-azide disodium
    DiSulfo-ICG-azide disodium is a fluorescent dye.
    DiSulfo-ICG-azide disodium
  • HY-172166
    TRITC-lysine-dextran (MW 4kDa)
    TRITC-lysine-dextran, 4kDa is a dextran with lysine coupling with a fluorescent group TRITC (HY-D0791). Lysine-dextran exhibits higher Glu-plasminogen binding ability than dextran alone.
    TRITC-lysine-dextran (MW 4kDa)
  • HY-D0371
    Acid blue 62
    Acid blue 62 is an acid dye whose staining effect can be removed by sepiolite
    Acid blue 62
  • HY-D2749
    Sulfo-Bis-(N,N'-carboxylic acid)-Cy5
    Sulfo-Bis-(N,N'-carboxylic acid)-Cy5 is a free unactivated carboxylic acid. Its absorbance and emission spectra are identical with Cy5 fluorophore.
    Sulfo-Bis-(N,N'-carboxylic acid)-Cy5
  • HY-D2547
    Cy5-PEG-biotin (MW 5000)
    Cy5-PEG-biotin (MW 5000) is a polyethylene glycol derivative containing Cy5 (HY-D0821) fluorescent dye and polyethylene glycol (PEG) and a Biotin. Biotin can bind with high affinity to streptavidin or avidin. Cy5-PEG-biotin (MW 5000) plays an important role in the specific capture and detection of biomolecules.
    Cy5-PEG-biotin (MW 5000)
  • HY-D0668
    Reactive orange 13
    Reactive orange 13 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
    Reactive orange 13
Cat. No. Product Name / Synonyms Application Reactivity