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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-120972
    Pentafluorobenzenesulfonyl fluorescein
    		98.30%
    Pentafluorobenzenesulfonyl fluorescein is a H2O2-selective sensor that can be used to detect H2O2 levels in cells. Pentafluorobenzenesulfonyl fluorescein is normally non-fluorescent but fluoresces upon perhydrolysis of the sulfonyl linkage by H2O2.
    Pentafluorobenzenesulfonyl fluorescein
  • HY-135235
    Cysteine thiol probe
    		98.14%
    Cysteine Thiol Probe is a thiol-based probe designed to label electrophilic natural products. Cysteine Thiol Probe possesses each of the characteristics of an ideal pharmacophore probe, and has a chromophore. Cysteine Thiol Probe is capable of engaging enone-, β-lactam-, and β-lactone-based electrophilic metabolites.
    Cysteine thiol probe
  • HY-D0091
    7-Ethoxy-4-trifluoromethylcoumarin
    7-Ethoxy-4-trifluoromethylcoumarin is a fluorescent substrate of various enzymes of the cytochrome P450 superfamily
    7-Ethoxy-4-trifluoromethylcoumarin
  • HY-P2491
    Atrial Natriuretic Peptide (1-28), human, porcine, Biotin-labeled
    		99.81%
    Atrial Natriuretic Peptide (1-28), human, porcine, Biotin-labeled, one of three mammalian natriuretic peptides (NPs), has endocrine effects on fluid homeostasis and blood pressure. Atrial Natriuretic Peptide has the potential for cardiovascular diseases research.
    Atrial Natriuretic Peptide (1-28), human, porcine, Biotin-labeled
  • HY-137873
    4-Methylumbelliferyl-α-D-Glucopyranoside
    		99.99%
    4-Methylumbelliferyl-α-D-Glucopyranoside (4-Methylumbelliferyl-α-D-Glucose) is a fluorescent substrate for α-glucosidase, which releases the fluorescent moiety 4-methylumbelliferyl (4-MU) upon cleavage. 4-MU has pH-dependent fluorescence excitation activity, with excitation wavelengths of 320 nm at low pH (1.97-6.72) and 360 nm at high pH (7.12-10.3), respectively. The emission wavelength of 4-Methylumbelliferyl-α-D-Glucopyranoside increases with decreasing pH, ranging from 445-455 nm. 4-Methylumbelliferyl-α-D-Glucopyranoside can be used as a biomarker for Fabry and Pompe diseases to quantify α-glucosidase activity in infant blood spot samples.
    4-Methylumbelliferyl-α-D-Glucopyranoside
  • HY-W250928C
    Biotin-PEG-azide (MW 2000)
    		98.69%
    Biotin-PEG-azide (MW 2000) is a biotin labeled PEG derivative. Biotin is an enzyme co-factor, can be used for labeling protein; PEG is a hydrophilic and water-soluble polymer with low toxicity; azide, is a moderately good leaving group, can react with alkyne by Cu-catalyzation, which improve the efficiency of biotin binding targets. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
    Biotin-PEG-azide (MW 2000)
  • HY-N0324F
    Cholic acid-Biotin
    Cholic acid-Biotin is a biotin-labeled Cholic acid (HY-N0324). Cholic acid is a major primary bile acid produced in the liver and usually conjugated with glycine or taurine. It facilitates fat absorption and cholesterol excretion. Cholic acid has orally activity.
    Cholic acid-Biotin
  • HY-129887
    Fluorescein diphosphate tetraammonium
    Fluorescein diphosphate tetraammonium is a fluorescent dye, it can be used as a fluorogenic substrate and generats fluorescein as a fluorescent product.
    Fluorescein diphosphate tetraammonium
  • HY-NP028
    Keyhole Limpet Hemocyanin-FITC
    Keyhole Limpet Hemocyanin-FITC induces both T-cell-dependent and T-cell-independent immune responses.
    Keyhole Limpet Hemocyanin-FITC
  • HY-161159
    DMHBO+
    		98.10%
    DMHBO+ is a cationic chromophore that binds to the Chili aptamer with a Kd of 12 nM. The Chili-DMHBO+ complex is an ideal fluorescence donor for FRET to the rhodamine dye Atto 590, suitable for imaging RNA in cells. Ex/Em=456/592 nm.
    DMHBO+
  • HY-D1365
    Sulfo-Cy3(Me)COOH
    Sulfo-Cy3(Me)COOH is a sulfo-Cyanine3 derivative. Cyanine3 is an orange-fluorescent label dye for protein and nucleic acid (Ex=554 nm, Em=568 nm).
    Sulfo-Cy3(Me)COOH
  • HY-119493
    MSBN
    		98.39%
    MSBN is a highly selective fluorogenic probe for thiols. MSBN can be used to image thiols in live cells selectively and specifically label protein thiols with a signal to determine various reversible protein thiol modifications.
    MSBN
  • HY-D0818
    CY3-YNE
    		98.07%
    CY3-YNE (Sulfo-Cyanine3-alkyne) is a dye for the labeling of soluble proteins, peptides, and oligonucleotides/DNA. CY3-YNE is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    CY3-YNE
  • HY-B1273
    Fenipentol
    		98.28%
    Fenipentol (1-Phenyl-1-pentanol), a synthetic derivative of an ingredient of Curcuma longa that is used as a condiment and dye. Fenipentol is also an orally active choleretic agent that plays an important role in release of secretin, gastrin, and pancreatic secretion of bicarbonate and protein.
    Fenipentol
  • HY-W591768
    (E)-4-(4-(Dimethylamino)styryl)-1-methylpyridin-1-ium iodide
    		99.66%
    (E)-4-(4-(Dimethylamino)styryl)-1-methylpyridin-1-ium (iodide) (Py-NMe2) is a styryl-based dye for fluorescence and CD-based sensing of various ds-DNA/RNA sequence. (maxλAbs = 450 nm, maxλEm = 615 nm).
    (E)-4-(4-(Dimethylamino)styryl)-1-methylpyridin-1-ium iodide
  • HY-D2337
    Quinophthalone
    Quinophthalone is a dye with distinctive greenish yellow color. Quinophthalone is used as coloring agents for various materials. Quinophthalone is a strong sensitizer in guinea pigs, and its threshold concentration for induction and challenge is 10 ppm.
    Quinophthalone
  • HY-W325356
    tert-Butyl 3,5-dinitrobenzoate
    		99.71%
    Tert-butyl 3,5-dinitrobenzoate is an intermediate or reactant in organic synthesis and can also play a role in drug synthesis, dye preparation and other chemical fields.The nitro functional group of Tert-butyl 3,5-dinitrobenzoate has certain reactivity in organic chemistry and can participate in various reactions, such as electrophilic substitution, aromatic amine reaction, etc.
    tert-Butyl 3,5-dinitrobenzoate
  • HY-124891
    1-Phenylpyrrole
    		99.94%
    1-Phenylpyrrole (N-Phenylpyrrole) has dual fluorescent properties. 1-Phenylpyrrole displays a single band in nonpolar solvents and a second red-shifted fluorescent band in polar solvents.
    1-Phenylpyrrole
  • HY-W800705
    Tamra azide
    		98.01%
    Tamra azide is a red fluorescent probe. The azide group of Tamra azide can react with alkynes via copper-catalyzed click chemistry.
    Tamra azide
  • HY-168375
    BODIPY-Palmitate
    BODIPY-Palmitate is a fluorescently labeled palmitic acid (HY-N0830), with excitation/emission maxima at 488/508 nm. BODIPY-Palmitate can be used to detect fatty acid uptake and metabolism.
    BODIPY-Palmitate
Cat. No. Product Name / Synonyms Application Reactivity