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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-D2252
    Disulfo-ICG amine
    Disulfo-ICG amine is a fluorescent dye.
    Disulfo-ICG amine
  • HY-D2759
    Cyanine3B azide
    Cyanine3B azide for click chemistry conjugation with terminal alkynes via a copper-catalyzed click reaction or strained cyclooctynes via a copper-free click reaction. Cyanine3B is a yellow-emitting cyanine dye that is an improved version of the Cyanine3 fluorophore with significantly higher fluorescence quantum yield and photostability. Due to the fixed conformation, Cyanine3B has the highest emission quantum yield compared to other dyes of this wavelength. This is a non-sulfonated dye that requires an organic co-solvent (DMF, DMSO, or other) for efficient labeling in water.
    Cyanine3B azide
  • HY-134360A
    ATP-1-Aminonaphthalene-5-sulfonate sodium
    ATP-1-Aminonaphthalene-5-sulfonate ((y-AmNS)-ATP) sodium is a fluorescent analog of ATP (HY-B2176). ATP-1-Aminonaphthalene-5-sulfonate is a substrate for DNA-dependent RNA polymerase and valyl t-RNA synthetase (Ex/Em = 320/460 nm).
    ATP-1-Aminonaphthalene-5-sulfonate sodium
  • HY-W848699
    FAM NHS ester, 6-isomer
    FAM NHS ester, 6-isomer is a hydrophilic fluorophore. The NHS ester can react specifically and efficiently with primary amines such as the side chain of lysine residue or aminosilane-coated surfaces at neutral or slight basic conditions to form a covalent bond.
    FAM NHS ester, 6-isomer
  • HY-D0303AR
    Chrysoidine G (Standard)
    Chrysoidine G (Standard) is the analytical standard of Chrysoidine G. This product is intended for research and analytical applications. Chrysoidine G (Solvent Orange 3 hydrochloride) is an industrial azoic dye (cationic dye). Chrysoidine G (Solvent Orange 3 hydrochloride) is used for the construction of most textile dyestuffs and also in synthetic industrial compounds. Chrysoidine G (Solvent Orange 3 hydrochloride) concentration can be determined by UV-Vis spectroscopy.
    Chrysoidine G (Standard)
  • HY-114541
    Coumarin-7-pinacolboronate
    Coumarin-7-pinacolboronate is a fluorescent probe. Taking hydrogen peroxide for instance, Coumarin-7-pinacolboronate and HOO- undergo a nucleophilic reaction to produce INT1. The chemical reaction mechanisms are nearly identical for the reactions of Coumarin-7-pinacolboronate with hydrogen peroxide, hypochlorous acid, peroxynitrite, and tyrosine hydroperoxide, respectively.
    Coumarin-7-pinacolboronate
  • HY-101879R
    Acridine Orange hydrochloride (Standard)
    Acridine Orange hydrochloride (Standard) is the analytical standard of Acridine Orange hydrochloride (HY-101879). This product is intended for research and analytical applications. Acridine Orange hydrochloride is a cell-penetrable nucleic acid-selective fluorescent dye. Acridine Orange hydrochloride produces orange fluorescence when it binds to ssDNA or RNA, and green fluorescence when it binds to dsDNA (Ex: 488 nM; Em: green fluorescence at 530 nm, orange fluorescence at 640 nm).
    Acridine Orange hydrochloride (Standard)
  • HY-179778
    C11 BODIPY 505/515 GM3 ammonium
    C11-BODIPY 505/515 GM3 ammonium is a C11-BODIPY 505/515-labeled GM3 ammonium that can be used to prepare lipid nanoparticles for drug delivery (Ex/Em = 505/515 nm).
    C11 BODIPY 505/515 GM3 ammonium
  • HY-D0667
    Disperse yellow 211
    Disperse yellow 211 is a yellow dye commonly used for fiber dyeing.
    Disperse yellow 211
  • HY-D0480
    C.I. Acid black 60
    C.I. Acid black 60 is an acidic black dye that can be adsorbed and removed by bentone.
    C.I. Acid black 60
  • HY-Y0699R
    Methyl red (Standard)
    Methyl red (Standard) is the analytical standard of Methyl red. This product is intended for research and analytical applications. Methyl red is an azo dye that acts as a pH indicator. Methyl red is red and yellow at pH 4.4 and 6.0 respectively.
    Methyl red (Standard)
  • HY-P2620
    Ac-LETD-AFC
    Ac-LETD-AFC is a caspase-8 fluorogenic substrate. Ac-LETD-AFC can measure caspase-8 fluorogenic activity and can be used for the research of cancer cell apoptosis and oxidative stress metabolism.
    Ac-LETD-AFC
  • HY-D2621
    Cy3 HA (MW 5000)
    Cy3 HA (MW 5000) is a hyaluronic acid labeled with CY3 (HY-D0822). Cy3 HA (MW 5000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 550/570 nm).
    Cy3 HA (MW 5000)
  • HY-158823C
    FAM labled GTI-2501 sodium
    FAM labled GTI-2501 sodiumis a FAM labled GTI-2501 sodium.
    FAM labled GTI-2501 sodium
  • HY-D2858B
    8-arm-PEG40000-FITC
    8-arm-PEG40000-FITC is a fluorescent dye composed of FITC (HY-66019) and eight-arm polyethylene glycol (8-Arm PEG). 8-arm-PEG40000-FITC can be used to modify proteins, peptides and other materials with active groups (Ex/Em=488/525 nm).
    8-arm-PEG40000-FITC
  • HY-D2474
    PSP
    PSP is a two-photon fluorescent probe for selective and sensitive detection of H2Sn in live cells and tumor spheroids (Ex/Em = 440/640 nm). PSP can be utilized in ferroptosis research.
    PSP
  • HY-D0585
    Procion red MX 8B
    Procion red MX 8B 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.
    Procion red MX 8B
  • HY-D2263
    BODIPY-cholesterol conjugate-3
    BODIPY-cholesterol conjugate-3 (compound 7) is a cholesterol analogue with a fluorescent BODIPY group. BODIPY-cholesterol conjugate-3 can be used to simultaneously visualize multiple cholesterol pools in cells, as it is primarily localized to the plasma membrane.
    BODIPY-cholesterol conjugate-3
  • HY-D2843
    FITC-PEG1000-FITC
    FITC-PEG1000-FITC is a fluorescent dye composed of two FITC (HY-66019) molecules and one PEG. FITC-PEG-FITC is connected to each end of the two FITC (HY-66019) molecules to form a dual-labeling structure, which is suitable for high-sensitivity fluorescence detection and imaging (Ex/Em=488/525 nm).
    FITC-PEG1000-FITC
  • HY-D0489
    C.I. Pigment orange 38
    C.I. Pigment orange 38 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 orange 38
Cat. No. Product Name / Synonyms Application Reactivity