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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-112498
    Cy3 NHS ester
    		99.45%
    Cy3 NHS ester 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.
    Cy3 NHS ester
  • HY-138226
    BODIPY 558/568 C12
    		98.13%
    BODIPY 558/568 C12 is a BODIPY dye. BODIPY dye is a small molecule dye with strong ultraviolet absorption ability, its fluorescence peak is relatively sharp, and the quantum yield is high. They are relatively insensitive to the polarity and pH of the environment and are relatively stable under different physiological conditions. Due to its structural asymmetry, BODIPY derives a variety of structural products. BODIPY lipid droplet dyes can well pass through the cell membrane into the cell, and localize the neutral lipids in the cell to specifically stain the lipid droplets, which can be used for labeling of live cells and fixed cells. Maximum excitation/emission wavelength: 558/568 nm.
    BODIPY 558/568 C12
  • HY-135985
    DCLK1-IN-1
    		99.62%
    DCLK1-IN-1 is a selective, oral bioavailability in vivo-compatible chemical probe of the doublecortin like kinase 1 (DCLK1 kinase) domain. DCLK1-IN-1 inhibits DCLK1 and DCLK2 kinases (IC50: DCLK1=9.5/57.2 nM and DCLK2=31/103 nM in binding and kinase assay, respectively). DCLK1-IN-1 shows low toxicity, and can investigate DCLK1 biology and establish its role in cancer, like DCLK1+ pancreatic ductal adenocarcinoma (PDAC).
    DCLK1-IN-1
  • HY-D0023
    Pyranine
    		≥98.0%
    Pyranine (HPTS; Solvent Green 7) is a pH-sensitive fluorescent indicator. Pyranine acts as a class of fluorescent chemosensor for the Cu+ ion(λex=450 nm, λem=510 nm).
    Pyranine
  • HY-117695
    AQC
    AQC (6-Aminoquinolyl-N-hydroxysccinimidyl carbamate) is a reagent used for amino acid or protein sequence analysis by HPLC with fluorescence detection. AQC reacts with primary and secondary amino acids to yield fluorescent derivates, allowing amino acid detection at under-picomolar levels.
    AQC
  • HY-15096
    MKT-077
    		98.05%
    MKT-077 (FJ-776), a highly water-soluble mitochondrial dye, has significant antitumor activity. MKT-077 exhibits low cytotoxicity, and inhibits broad-spectrum human cancer cell lines (colon cancer, breast cancer, pancreatic cancer). MKT-077 inhibits the growth of tumor in nude mice enograft tumor model. Ex/Em=488/543 nm.
    MKT-077
  • HY-15930
    TMB
    		99.95%
    TMB 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 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 can detect the singlet oxygen produced by the outer membrane of Escherichia coli ATCC 25922.
    TMB
  • HY-133870
    Itaconate-alkyne
    		98.00%
    Itaconate-alkyne (ITalk) is a specific bioorthogonal probe for quantitative and site-specific chemoproteomic profiling of Itaconation in living cells. Itaconate-alkyne, a functional analogue of Itaconate, exhibits comparable antiinflammatory effect with Itaconate and enables the labeling of bona fide targets of Itaconate. Itaconate-alkyne is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Itaconate-alkyne
  • HY-148242
    BAY-069
    		99.58%
    BAY-069 is a potent branched-chain amino acid transaminases 1 (BCAT1) and BCAT2 inhibitor with IC50 values of 31 nM and 153 nM, respectively. BAY-069 also can be used as a chemical probe. BAY-069 can be used tor research anticancer.
    BAY-069
  • HY-D0720
    Lucigenin
    		99.12%
    Lucigenin is a chemiluminescence probe. Lucigenin can be used to detect the production of endogenous superoxide anion radical (O2-). Lucigenin is extremely sensitive to chloride ions, while it combined with chloride ions, the fluorescence will be quenched. Lucigenin also can be used as a chloride indicator. Ex/Em=455/505 nm.
    Lucigenin
  • HY-D0908
    Ninhydrin
    		99.97%
    Ninhydrin can be used as a chromogenic analytical probe for the quantification of amino acids and proteins.
    Ninhydrin
  • HY-15558
    Hoechst 33258
    		99.93%
    Hoechst 33258 is a marker dye in Hoechst series. Hoechst is A live nuclear marker dye. Hoechst binds to the grooves in the DNA double strand, which tends to be A/ T-rich DNA strand. Although it binds to all nucleic acids, the A/ T-rich double strand DNA significantly enhances fluorescence intensity Therefore,Hoechst dye can be used for living cell labeling. The fluorescence intensity of Hoechst dye increases with the increase of pH of solution.
    Hoechst 33258
  • HY-D0903
    1,8-Diazafluoren-9-one
    		99.74%
    1,8-Diazafluoren-9-one (DFO) is a chemical that is used to find fingerprints on porous surfaces.
    1,8-Diazafluoren-9-one
  • HY-D1540
    Cyanine5.5 amine
    		99.28%
    Cyanine5.5 amine (Cy 5.5 amine), a Cy5.5 Analogue, is a near-infrared (NIR) fluorescent dye (Ex=648 nm, Em=710 nm). Cyanine5.5 amine can be used in the preparation of Cy5.5-labeled nanoparticles, which can be tracked and imaged with low fluorescence background using confocal microscopy.
    Cyanine5.5 amine
  • HY-D0970
    Diphenyl Blue
    Diphenyl Blue (Trypan Blue) is a cell active dye, the most commonly used dye for the identification of dead cells, of en used to test cell membrane integrity and cell viability. Diphenyl Blue staining is one of the methods for tissue and cell culture. When cells are deactivated or have incomplete cell membranes, Diphenyl Blue can stain them Blue. Normal living cells with intact cell membranes reject Diphenyl blue and do not stain them blue. However, macrophages are capable of phagocytosis of Diphenyl Blue, so it can be used as a living stain for macrophages.
    Diphenyl Blue
  • HY-D0034
    9,10-Anthracenediyl-bis(methylene)dimalonic acid
    9,10-Anthracenediyl-bis(methylene)dimalonic acid (ABMDMA) is a biological dye and indicator used to detect singlet oxygen generation (SOG). 9,10-Anthracenediyl-bis(methylene)dimalonic acid is water-soluble derivative of anthracene. 9,10-Anthracenediyl-bis(methylene)dimalonic acid can be photobleached by singlet oxygen to its corresponding endoperoxide. This reaction can be monitored spectrophotometrically by recording the decrease of absorbance at 400 nm.
    9,10-Anthracenediyl-bis(methylene)dimalonic acid
  • HY-D0974
    Sulforhodamine B sodium salt
    		99.28%
    Sulforhodamine B sodium salt is a fluorescent dye with uses spanning from laser-induced fluorescence (LIF) to the quantification of cellular proteins of cultured cells.
    Sulforhodamine B sodium salt
  • HY-D1416
    HMBR
    		98.43%
    HMBR, an analog bearing an additional methyl group on the aromatic ring, is nonfluorescent by itself, but it fluoresces yellow light upon blue-light excitation when bound to Y-FAST. HMBR is nontoxic for zebrafish embryos. cell-permeant.
    HMBR
  • HY-D0027
    7-Amino-4-methylcoumarin
    		99.91%
    7-Amino-4-methylcoumarin belongs to the coumarin class, can be isolated from the endophytic fungus Xylaria sp. and has a broad spectrum of antibacterial activity. 7-Amino-4-methylcoumarin is also commonly used as an important laser dye that emits in the blue region, capable of analyzing glycoprotein monosaccharides and N-linked oligosaccharides, and is also utilized in tissue pathology analysis, enzyme activity measurement, and copper ion detection. The excitation wavelength and emission wavelength are 351 nm and 430 nm, respectively.
    7-Amino-4-methylcoumarin
  • HY-D1491A
    Fast Red Violet LB Zinc chloride
    		99.17%
    Fast Red Violet LB Zinc chloride is a stain that stains tartrate-resistant acid phosphatase (TRAP) and Fast Red Violet LB Zinc chloride can be used to stain alkaline phosphatase (ALP) activity.
    Fast Red Violet LB Zinc chloride
Cat. No. Product Name / Synonyms Application Reactivity