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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-D2699
    Cy7.5 HA MA (MW 10000)
    Cy7.5 HA MA (MW 10000) is a hyaluronic acid methacrylate labeled with CY7.5 (HY-D0926). Cy7.5 HA MA (MW 10000) is widely used in the fields of biolabeling and imaging, drug delivery and tissue engineering and regenerative medicine (Ex/Em = 770/820 nm).
    Cy7.5 HA MA (MW 10000)
  • HY-D0365
    Pigment Yellow 147
    Pigment Yellow 147 is a disazomethine dye with solid-state fluorescence.a biologically active chemical.
    Pigment Yellow 147
  • HY-D2845C
    4-arm-PEG20000-FITC
    4-arm-PEG20000-FITC is a fluorescent dye composed of FITC (HY-66019) and four-arm polyethylene glycol (4-Arm PEG). 4-arm-PEG20000-FITC can be used to modify proteins, peptides and other materials with active groups (Ex/Em=488/525 nm).
    4-arm-PEG20000-FITC
  • HY-D0435
    C.I. Acid brown 120
    C.I. Acid brown 120 is an acidic brown dye that can be adsorbed and removed by bentone clay.
    C.I. Acid brown 120
  • HY-100335R
    PCI-33380 (Standard)
    PCI-33380 (Standard) is the analytical standard of PCI-33380 (HY-100335). This product is intended for research and analytical applications. PCI-33380 is a fluorescent probe ( (Ex=532 nm, Em=555 nm). PCI-33380 consists of a (BTK) inhibitor PCI-32765 (HY-10997) attaching with a Bodipy-FL fluorophore via a piperazine linker. PCI-33380 binds predominantly to Btk in B cell lysates with cell permeable activity. PCI-33380 can be used for imaging live cancer cells such as non-Hodgkin lymphoma research
    PCI-33380 (Standard)
  • HY-160274
    DSPE-PEG2000-Fluor 555
    DSPE-PEG2000-Fluor 555 is a PEG lipid conjugate with a DSPE group and a Fluor 555 dye. DSPE is a phosphoethanolamine (PE) lipid that can be used in the synthesis of liposomes. And Fluor 555 is a fluorescent dye.
    DSPE-PEG2000-Fluor 555
  • HY-D0422
    C.I. Acid red 183
    C.I. Acid red 183 is an acid red dye that can be adsorbed and removed by bentone clay.
    C.I. Acid red 183
  • HY-101890R
    Dabsyl chloride (Standard)
    Dabsyl chloride (Standard) is the analytical standard of Dabsyl chloride (HY-101890). This product is intended for research and analytical applications. Dabsyl chloride is an amine derivatizing agent, able to give rise to stable products that can be easily monitored spectrophotometrically at 460 nm; Dabsyl chloride also used for labeling amino acids.
    Dabsyl chloride (Standard)
  • HY-101880R
    ADHP (Standard)
    ADHP (Standard) is the analytical standard of ADHP (HY-101880). This product is intended for research and analytical applications. ADHP is a fluorogenic peroxidase substrate (λex=530 nm, λem=590 nm).
    ADHP (Standard)
  • HY-168377
    Fluo-4 potassium
    Fluo-4 potassium is a cell-impermeable Ca2+ (calcium ion) indicator (λex=494 nm, λem=516 nm). Fluo-4 potassium can be introduced into cells using methods such as patch clamping and microinjection.
    Fluo-4 potassium
  • HY-D1292C
    Photoacoustic contrast agent-2 acetate
    Photoacoustic contrast agent-2 (acetate) 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.
    Photoacoustic contrast agent-2 acetate
  • HY-D2771
    BP Fluor 405 NHS ester
    BP Fluor 405 NHS Ester is a water-soluble, blue-fluorescent dye that is often used in multi-color applications, including flow cytometry and super-resolution microscopy using STORM. Its excitation is ideally suited for the 407 nm spectral line of the krypton laser or the 408 nm violet laser diode. BP Fluor 405 conjugates are pH-insensitive from pH 4 to pH 10. The NHS ester (or succinimidyl ester) is the most popular amine reactive group for labeling with the primary amines of proteins (Lys), amine-modified oligonucleotides, and other amine-containing molecules. Proteins can be labeled with BP Fluor 405 NHS Ester at high molar ratios without significant self-quenching, leading to brighter conjugates and more sensitive detection. BP Fluor 405 conjugates can also be used for the detection of abundance targets.
    BP Fluor 405 NHS ester
  • HY-D1950
    ATTO 633
    ATTO 633 is a fluorescent dye with an absorption peak at approximately 630 nm and a fluorescence emission peak at 651 nm. ATTO 633 can be used in nanomechanical photothermal microscopy studies.
    ATTO 633
  • HY-D1524A
    N-(Aminoethyl)-8-naphthylamine-1-sulfonic acid sodium
    N-(Aminoethyl)-8-naphthylamine-1-sulfonic acid sodium (1,8-EDNAS sodium) 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.
    N-(Aminoethyl)-8-naphthylamine-1-sulfonic acid sodium
  • HY-D0360
    Mordant Blue 9
    Mordant Blue 9 is an azo dye commonly used for dyeing textiles.
    Mordant Blue 9
  • HY-D0383
    Pigment Red 146
    Pigment Red 146 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 146
  • HY-D0356
    Eriochrome Black A
    Eriochrome Black A is an azo dye that can be removed from water by an adsorbent made of magnetic NiFe2O4 nanoparticles.
    Eriochrome Black A
  • HY-D1309
    Sulfo-cyanine3 NHS ester sodium
    Sulfo-cyanine3 NHS ester sodium is a water-soluble cyanine dye that contains NHS ester groups and is amino-reactive.
    Sulfo-cyanine3 NHS ester sodium
  • HY-D2630
    Cy3 HA MA (MW 3000)
    Cy3 HA MA (MW 3000) is a hyaluronic acid methacrylate labeled with CY3 (HY-D0822). Cy3 HA MA (MW 3000) is widely used in the fields of biolabeling and imaging, drug delivery and tissue engineering and regenerative medicine (Ex/Em = 550/570 nm).
    Cy3 HA MA (MW 3000)
  • HY-D2704
    Cy7.5 HA biotin (MW 10000)
    Cy7.5 HA biotin (MW 10000) is a biotinylated hyaluronic acid labeled with CY7.5 (HY-D0926). Cy7.5 HA biotin (MW 10000) is widely used for cell imaging and in vivo imaging of shallow tissues (Ex/Em = 770/820 nm).
    Cy7.5 HA biotin (MW 10000)
Cat. No. Product Name / Synonyms Application Reactivity