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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-D0096
    3-(2-Furoyl)quinoline-2-carboxaldehyde
    		98.23%
    3-(2-Furoyl)quinoline-2-carboxaldehyde 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.
    3-(2-Furoyl)quinoline-2-carboxaldehyde
  • HY-P4312
    Boc-Leu-Lys-Arg-AMC
    		99.10%
    Boc-Leu-Lys-Arg-AMC is a fluorogenic substrate for the Kex2 endoprotease.
    Boc-Leu-Lys-Arg-AMC
  • HY-D0948
    Celestine Blue
    Celestine Blue is a electroactive indicator in DNA biosensors. Celestine Blue is strongly adsorbed on the spinel phases and CNT (carbon nanotubes), facilitates dispersion, acts as a capping agent and allows for the fabrication of spinel decorated CNT. Celestine Blue is an efficient charge transfer mediator, which allows for significant improvement of capacitive behavior. TiO2 nanoparticles doped with Celestine Blue can be used as a label in a sandwich immunoassay for the hepatitis C virus (HCV) core antigen.
    Celestine Blue
  • HY-P11212
    Ac-RHKK(Ac)-AMC
    		99.68%
    Ac-RHKK(Ac)-AMC (Compound S1) is a fluorescent substrate for SITR6, that is based on p53 sequence. Ac-RHKK(Ac)-AMC mimics H3K56 deacetylation site and significantly increases the deacetylation signal with low signal-to-background ratio. Ac-RHKK(Ac)-AMC can be used for ageing and cancers research.
    Ac-RHKK(Ac)-AMC
  • HY-P4341A
    D-Val-Leu-Lys-AMC TFA
    		99.65%
    D-Val-Leu-Lys-AMC TFA is a selective fluorogenic peptide substrate of plasmin. D-Val-Leu-Lys-AMC TFA can be used for the quantification of enzymatic activity of plasmin. Ex: 360-380 nm, Em: 440-460 nm.
    D-Val-Leu-Lys-AMC TFA
  • HY-W003112
    4-Fluororesorcinol
    		99.70%
    4-Fluororesorcinol is a precursor used in the preparation of fluorescent dyes or indicators such as fluorescein, coumarin and resorcinol analogues.
    4-Fluororesorcinol
  • HY-D2179
    AF 568 DBCO
    AF 568 DBCO is a fluorescent dye that reacts with azide-labeled molecules or biomolecules via copper-free click chemistry. AF 568 exhibits maximum absorption wavelength of 579 nm and the maximum emission wavelength of 603 nm.
    AF 568 DBCO
  • HY-D0036
    Br-Mmc
    		98.56%
    Br-Mmc (4-Bromomethyl-7-methoxycoumarin) is often used as fluorescent label for the determination of compounds possessing a carboxylic group. Br-Mmc is used for the determination fatty acids by TLC or HPLC.
    Br-Mmc
  • HY-D1138
    Reactive red 120
    Reactive red 120 is common textile dyes that can be adsorbed onto single-walled carbon nanotubes (SWCNTs) through electrostatic interactions, allowing the separation of residual dyes.
    Reactive red 120
  • HY-P0136AF
    FAM-SAMS TFA
    FAM-SAMS TFA is a 5-FAM (HY-66022) labeled SAMS (HY-P0136). SAMS peptide is a specific substrate for the AMP-activated protein kinase (AMPK).
    FAM-SAMS TFA
  • HY-116234
    Solvent Green 3
    Solvent Green 3 is an anthraquinone-based fluorescent dye. Solvent Green 3 can be used for staining of cell, bacterial and tissue samples.
    Solvent Green 3
  • HY-134566
    NBD-X, SE
    NBD-X, SE, the acceptor fluorophore, can be used to create environment sensitive bioconjugates.
    NBD-X, SE
  • HY-D0219
    Thymol blue
    Thymol blue is a reversible pH indicator that responds to the pH of the solution through structural changes of protonation and deprotonation. Thymol blue is red (HI- form) under acidic conditions and blue (I2- form) under alkaline conditions. Quantitative detection is achieved through the absorption peak shift (435 nm/596 nm) of the UV-visible spectrum. Thymol blue selectively responds to pH changes, changing from red to yellow at pH 1.2-2.8 and from yellow to blue at pH 8.0-9.6. Thymol blue can be fixed in a silica gel matrix through sol-gel technology to form a solid-state sensor for in-situ pH measurement in the marine environment and acid-base monitoring in the biomedical field[1][2].
    Thymol blue
  • HY-W190932
    TAMRA-PEG2-Maleimide
    TAMRA-PEG2-Maleimide is a dye derivative of TAMRA (HY-135640) containing 4 PEG units. TAMRA-PEG2-Maleimide contains a maleimide group that can react with a thiol group to form a covalent bond.
    TAMRA-PEG2-Maleimide
  • HY-137098
    Sulfo-Cy3 maleimide potassium
    Sulfo-Cy3 maleimide potassium is a fluorescent dye with a maleimide functionality at the end a short alkyl linker. Sulfo-Cy3 maleimide potassium can be used for the labeling of antibodies and other labile proteins.
    Sulfo-Cy3 maleimide potassium
  • HY-NP0156
    Peanut Agglutinin (Rhodamine)
    Peanut Agglutinin (PNA) Rhodamine is a plant lectin that can be used as a probe to specifically bind biomolecules (such as polysaccharides, peptides, etc.).Peanut Agglutinin (PNA) Rhodamine is a biological material or organic compound that can be used in life science research.
    Peanut Agglutinin (Rhodamine)
  • HY-P11213
    Ac-RYQK(Ac)-AMC
    		99.55%
    Ac-RYQK(Ac)-AMC (Compound S5) is a fluorescent substrate for SITR6, that is based on the H3 sequence. Ac-RYQK(Ac)-AMC mimics H3K56 deacetylation site and significantly increases the deacetylation signal with superior signal-to-background ratio. Ac-RYQK(Ac)-AMC can be used for ageing and cancers research.
    Ac-RYQK(Ac)-AMC
  • HY-P10943
    APO-15
    		99.45%
    APO-15 is a phosphatidylserine-binding fluorescent probe and apoptosis imaging reagent. APO-15 exhibits high chemical stability under proteolytic and oxidative conditions, enables quantification and imaging of drug-induced apoptosis in preclinical mouse models, and is applicable to fixed tissue samples and multiple in vivo administration routes (Ex = 488 nm; Em = 525 nm). APO-15 can be used in studies related to acute lung injury and breast cancer.
    APO-15
  • HY-D1095
    Cy7 DiAcid
    Cy7 DiAcid belongs to the cyanine dye series and is a common fluorescent marker for biomolecules that can interact with biomolecules. Cyanine dyes may also bind to double-helical DNA through intercalation and exhibit enhanced fluorescence upon binding.
    Cy7 DiAcid
  • HY-D2241
    Sulfo-Cy7-DBCO
    Sulfo-Cy7-DBCO is the water-soluble version of cyanine 7. Sulfo-Cy7-DBCO spectral properties are similar to Cy7. Sulfo-Cy7-DBCO is a near-infrared fluorescent dye.
    Sulfo-Cy7-DBCO
Cat. No. Product Name / Synonyms Application Reactivity