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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.

製品番号 製品名 製品効果 純度 構造式
  • HY-D2849
    Heparin-Cy5
    Heparin-Cy5 is a fluorescent dye composed of CY5 (HY-D0821) and heparin. Heparin-CY5 is used to study the localization and distribution of heparin in vivo and its interaction with other biomolecules (Ex/Em = 633/670 nm).
    Heparin-Cy5
  • HY-D0478
    C.I. Basic red 14 99.09%
    C.I. Basic red 14 is an alkaline dye that can be removed from aqueous solutions in intermittent adsorption systems using tree ferns as biosorbents.
    C.I. Basic red 14
  • HY-D2769
    Oregon green 488 azide 98.00%
    Oregon green 488 azide (Difluorocarboxyfluorescein azide, 6-isomer) is a bright green fluorescent azide-activated probe that reacts with terminal alkynes via copper-catalyzed azide-alkyne cycloaddition (CuAAC). Oregon green 488 azide can label goat anti-mouse IgG and exhibits excellent luminescence efficiency. Oregon green 488 azide, as a streptavidin conjugate, is used for flow cytometry staining of macrophages.
    Oregon green 488 azide
  • HY-D2640
    Cy5 HA (MW 5000)
    Cy5 HA (MW 5000) is a hyaluronic acid labeled with CY5 (HY-D0821). Cy5 HA (MW 5000) is widely used for cell imaging and in vivo imaging of shallow tissue (Ex/Em = 633/670 nm).
    Cy5 HA (MW 5000)
  • HY-D1217
    Pigment Yellow 12 98%
    Pigment Yellow 12 is a disazomethine dye with solid-state fluorescence.a biologically active chemical.
    Pigment Yellow 12
  • HY-15930C
    TMB monosulfate 99.88%
    TMB monosulfate is the monosulfate form of TMB (HY-15930). TMB monosulfate is a non-toxic, non-mutagenic, colorless dye that is also used as a chromogenic agent in enzyme detection systems based on horseradish peroxidase (HRP). TMB monosulfate can function as a photoacoustic probe for reactive oxygen and nitrogen species (ROS/RNS), reacting with hypochlorite, hydrogen peroxide, singlet oxygen, and nitrogen dioxide to produce blue oxidation products. TMB monosulfate can detect the singlet oxygen produced by the outer membrane of Escherichia coli ATCC 25922.
    TMB monosulfate
  • HY-D0921
    Heptamethine cyanine dye-1
    Heptamethine cyanine dye-1 (Compound CyCl) is a cyanine dye (Fmax: 858 nm, in CH2Cl2). Heptamethine cyanine dye-1 can be used to synthesize pH near-infrared fluorescent probes.
    Heptamethine cyanine dye-1
  • HY-D1542
    Mucicarmine
    Mucicarmine is used in the histological visualization of acid mucopolysaccharides in tissue sections. Mucicarmine can identify mucin (deep rose), which is useful in determining the mucin positive cancer (such as liver carcinoma).
    Mucicarmine
  • HY-D0219A
    Thymol Blue sodium
    Thymol Blue sodium is an acid-base indicator used to indicate changes in pH. Thymol Blue sodium fades from red to yellow at pH 1.2 to 2.8 and from yellow to blue at pH 8.0 to 9.6. Quantitative detection is achieved through the absorption peak shift (435 nm/596 nm) of the UV-visible spectrum. Thymol blue sodium 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.
    Thymol Blue sodium
  • HY-D1054
    Cy2 (iodine)
    Cy2 iodine is a CY dye. CY, short for Cyanine, is a compound consisting of two nitrogen atoms connected by an odd number of methyl units. Cyanine compounds have the characteristics of long wavelength, adjustable absorption and emission, high extinction coefficient, good water solubility and relatively simple synthesis. CY dyes are of en used for the labeling of proteins, antibodies and small molecular compounds. For the labeling of protein antibodies, the combination can be completed through a simple mixing reaction. Below, we introduce the labeling method of protein antibody labeling, which has certain reference significance.
    Cy2 (iodine)
  • HY-D1032
    DiZHSeC 99.90%
    DiZHSeC 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.
    DiZHSeC
  • HY-101901
    Oxazine 1 perchlorate ≥99.0%
    Oxazine 1 perchlorate is a symmetric cationic dye (λex=653 nm, λem=666 nm).
    Oxazine 1 perchlorate
  • HY-D0066
    7-Diethylaminocoumarin-3-carbohydrazide
    7-Diethylaminocoumarin-3-carbohydrazide is a coumarin. 7-Diethylaminocoumarin-3-carbohydrazide can be used to detect sugar chains and quantify biological carbonyl compounds.
    7-Diethylaminocoumarin-3-carbohydrazide
  • HY-121930
    Coumarin 6H 99.05%
    Coumarin 6H, a Coumarin (HY-N0709) derivative, is a laser dye. The fluorescence emission of Coumarin 6H can be enhanced by hydrogen bonding interactions.
    Coumarin 6H
  • HY-D1260
    FM-red 98.81%
    FM-red (PSH-red) is a red-emitting and environment-sensitive probe for selectively detecting and labeling protein thiols. FM-red can be used to image protein sulfhydryl groups in live cells and in vivo. FM-red also could be used to measure of the redox states of thioredoxin (Trx).
    FM-red
  • HY-W777012
    Acridinium C2 NHS ester
    Acridinium C2 NHS ester is a chemiluminescent label that is active for the development of protein and nucleic acid probes. Acridinium C2 NHS ester can be used in bioanalysis and diagnostics to provide highly sensitive detection solutions. Acridinium C2 NHS ester is widely used in medical research, especially in the monitoring and analysis of biomolecules.
    Acridinium C2 NHS ester
  • HY-D0350
    Direct Yellow 50
    Direct Yellow 50 is a good dyeing agent for cotton fabrics.
    Direct Yellow 50
  • HY-D1830
    Vari Fluor 680 Carboxylic acid（free acid）
    Vari Fluor 680 Carboxylic acid (VF 680 Carboxylic acid) free acid is a carboxylic acid derivative of Vari Fluor. Vari Fluor carboxylic acid derivatives are unactivated labeled fluorescent dyes for protein, antibody, and polysaccharide labeling that require carboxylic acid activation for use.
    Vari Fluor 680 Carboxylic acid（free acid）
  • HY-D1794
    Vari Fluor 405 SE 98.0%
    Vari Fluor 405 SE (VF 405 SE) is a dye marker of the Vari Fluor SE series (Ex/Em=399 nm/421 nm). The Vari Fluor SE series of dyes are a class of fluorescent dyes containing NHS ester groups used to label free amines (-NHX) on antibodies, proteins, peptides, amine-modified oligonucleotides and other biomolecules.
    Vari Fluor 405 SE
  • HY-D2890
    5-TAMRA-NHS
    5-TAMRA-NHS is a fluorescent dye that combines 5-TAMRA (HY-15942) with a hydroxysuccinimide (NHS) group. The NHS group can react with amine-containing groups. 5-TAMRA-NHS can be used for fluorescent labeling and imaging (Ex/Em = 541/567 nm).
    5-TAMRA-NHS
製品番号 製品名 / Synonyms Application Reactivity