2. Signaling Pathways
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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-160059
    JHIT2e aptamer sodium
    JHIT2e aptamer sodium is a molecular probe based on the aptamer JHIT2 of human liver cancer cell line HepG2 cells. JHIT2e aptamer sodiu retains the ability to specifically bind HepG2 and can deliver fluorescent materials or radionuclides to tumors.
    JHIT2e aptamer sodium
  • HY-173530
    8-Bromo TNP-GTP tetrasodium
    8-Bromo TNP-GTP (8-Bromo TNP-Guanosine 5'-triphosphate) tetrasodium is a fluorescent TNP-GTP analogue with a TNP fluorophore and a bromo group at the 8-position. 8-Bromo TNP-GTP tetrasodium can be used to analyze the binding activity of GTP-binding proteins (such as Ras and Gα subunits).
    8-Bromo TNP-GTP tetrasodium
  • HY-153494E
    Cy3 labled Rosomidnar sodium
    Cy3 labled Rosomidnar sodium is a Cy3 labled Rosomidnar sodium.
    Cy3 labled Rosomidnar sodium
  • HY-DY1104
    Copper Fluor-4 (solution)
    Copper Fluor-4 (solution) (CF4 (solution)) is a Cu+-specific fluorescent probe based on a rhodol dye scaffold. Copper Fluor-4 solution has high copper selectivity with a Kd value of 2.9×10?13 M, particularly over zinc and iron, as well as abundant cellular alkali and alkaline earth metals. Copper Fluor-4 solution is stable in a physiologically relevant pH regime between 6 and 8 (wavelengths of 415 nm for excitation and 660 nm for emission).
    Solvent and concentration: DMSO: 5 mM
    Copper Fluor-4 (solution)
  • HY-D1394
    AgAuSe QDs
    AgAuSe QDs (AgAuSe) is a near infrared (NIR) fluorescent quantum dots (QDs), with a bright emission from 820 to 1170 nm. AgAuSe QDs can be used for the research in biomedical imaging and NIR devices.
    AgAuSe QDs
  • HY-D2014
    ATTO 565 alkyne
    ATTO 565 alkyne 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 565 alkyne is an alkyne derivative of ATTO 565 and can be used to label proteins or antibodies.
    ATTO 565 alkyne
  • HY-160062C
    Cy3 labled S2.2 aptamer sodium
    Cy3 labled S2.2 aptamer sodium is a Cy3 labled S2.2 aptamer sodium.
    Cy3 labled S2.2 aptamer sodium
  • HY-D2168
    AF 568 azide
    AF 568 azide is an azide derivative of the orange fluorescent dye AF 568. AF 568 has an absorption wavelength of 590-720 nm (FRET) and an emission wavelength of 515-720 nm. AF 568 alkyne can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) via the Azide group and molecules containing Alkyne groups. Strain-promoted alkyne-azide cycloaddition (SPAAC) can also occur with molecules containing DBCO or BCN groups. To achieve specific coupling of dye labels and biomolecules.
    AF 568 azide
  • HY-153837D
    FAM labled ISIS 14803 sodium
    FAM labled ISIS 14803 sodiumis a FAM labled ISIS 14803 sodium.
    FAM labled ISIS 14803 sodium
  • HY-D1501
    Fura PE-3 potassium
    Fura PE-3 potassium is a Ca2+sensitive fluorophore. Fura PE-3 potassium loads in IPA (intrapulmonary arteries) and MA (mesenteric resistance arteries) for the research of vasoconstriction.
    Fura PE-3 potassium
  • HY-D3047A
    Rhodamine B-Dextran chloride (MW 5000)
    Rhodamine B-Dextran (MW 5000) is a Rhodamine B (HY-Y0016)-labeled dextran with a molecular weight of 5000. Rhodamine B-Chitosan (MW 5000) plays an important role in fluorescent labeling, cell imaging, vascular imaging, and drug delivery research (Ex/Em = 546/610 nm).
    Rhodamine B-Dextran chloride (MW 5000)
  • HY-D2816
    Chitosan-Cy7.5 (MW 2000)
    Chitosan-Cy7.5 (MW 2000) is a Chitosan labeled with Cy7.5 (HY-D0926). Chitosan-Cy7.5 (MW 2000) can be used for fluorescent labeling and imaging.
    Chitosan-Cy7.5 (MW 2000)
  • HY-D2987
    BacGO
    BacGO is a highly selective, wash free fluorescent probe for Gram positive bacteria. BacGO binds to the carbohydrate structure in peptidoglycan through boric acid and exhibits depolymerization induced luminescence (DIE) properties. BacGO can be used for imaging complex environmental samples (such as activated sludge) and flat plate bacteria without affecting bacterial activity.
    BacGO
  • HY-D2998
    ONOO-LysopH
    ONOO-LysopH is a new Rhodamine-based near-infrared fluorescent probe. ONOO-LysopH is acid-sensitive, exhibiting rapid near-infrared fluorescence enhancement around 686 nm under acidic pH conditions. ONOO-LysopH also displays a rapid NIR turn-on fluorescence around 678 nm for ONOO− at physiological pH. ONOO-LysopH can target lysosomes to track lysosomal pH changes and image endogenous/exogenous ONOO− in live cells. ONOO-LysopH is applicable for cell imaging ONOO− and tracking lysosomal pH changes.
    ONOO-LysopH
  • HY-D2798B
    FITC-PEG5000-SH
    FITC-PEG5000-SH is a fluorescent dye composed of polyethylene glycol (PEG), FITC (HY-66019) and a sulfhydryl (SH). FITC-PEG5000-SH can be used for fluorescent labeling and imaging.
    FITC-PEG5000-SH
  • HY-177616C
    FAM labled Archexin sodium
    FAM labled Archexin sodiumis a FAM labled Archexin sodium.
    FAM labled Archexin sodium
  • HY-D2973
    YH-APN
    YH-APN is a high-performance APN activated near-infrared fluorescent probe. YH-APN has high sensitivity, high selectivity, fast response, and can achieve extremely high tumor/normal tissue signal-to-noise ratio through in situ spraying. YH-APN can specifically distinguish cancer cells with high expression of APN from normal cells and monitor the migration of cancer cells.
    YH-APN
  • HY-D0002
    7-Amino-4-methylcoumarin hydrogensulfate
    7-Amino-4-methylcoumarin hydrogensulfate (Coumarin 120 hydrogensulfate; AMC hydrogensulfate) 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.
    7-Amino-4-methylcoumarin hydrogensulfate
  • HY-D2895A
    RB-PEG600-NH2
    RB-PEG600-NH2 (Rhodamine B-PEG600-NH2) is a fluorescent dye composed of Rhodamine B (HY-Y0016), PEG and an amino group. The reactive primary amine or NH2 groups can react rapidly with activated carboxylic acids such as NHS esters to form stable amide bonds (Ex/Em=546/610 nm).
    RB-PEG600-NH2
  • HY-W297715
    7-Acetoxy-4-bromomethylcoumarin
    7-Acetoxy-4-bromomethylcoumarin acts as a fluorescence label for fatty acids.
    7-Acetoxy-4-bromomethylcoumarin
Cat. No. Product Name / Synonyms Application Reactivity