2. Signaling Pathways
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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-NP163C
    Wheat germ agglutinin-AF555
    Wheat germ agglutinin-AF555 (WGA-AF555) is a membrane-staining lectin conjugate that combines wheat germ agglutinin with the Alexa Fluor 555 fluorescent dye. Wheat germ agglutinin-AF555 is used for precise staining and contour delineation of cell membranes. Wheat germ agglutinin-AF555 also effectively distinguishes between surface vimentin and intracellular vimentin in cells.
    Wheat germ agglutinin-AF555
  • HY-15937
    5(6)-FAM SE
    5(6)-FAM SE is a green fluorescent dye widely used for protein labeling.
    5(6)-FAM SE
  • HY-15938
    5-FAM SE
    5-FAM SE is a single isomer, is a fluorescent labeling reagent used for labeling peptides, proteins and nucleotides. 5-FAM SE can react with amines and can yield stable amine conjugates.
    5-FAM SE
  • HY-D2865
    Celltrack Deep Red
    Celltrack Deep Red is a fluorescent dye with a fluorescence signal that can be maintained for at least 72 h and has good stability. Celltrack Deep Red can be used for cell tracing and multi-generation cell movement tracking. Within a cell population, Celltrack Deep Red is only transferred to daughter cells and not to neighboring cells (Ex/Em = 630/650 nm).
    Celltrack Deep Red
  • HY-D0259
    Erythrosine B
    		98.0%
    Erythrosine B is an artificial dye widely used in the food and textile industries. Erythrosine B is also a novel photosensitizer which has been used to develop animal models.
    Erythrosine B
  • HY-W247131
    DASPEI
    		99.91%
    DASPEI is a cationic styrenyl mitochondrial dye with large Stokes shift. DASPEI has excitation and emission wavelength at 550/573 nm, which has good light chromogenic property. DASPEI can stain mitochondria in living cells with good labeling property. And DASPEI can also be used to stain presynaptic nerve endings independently of neuronal activity.
    DASPEI
  • HY-NP163D
    Wheat germ agglutinin-AF594
    Wheat germ agglutinin-AF594 (WGA-AF594) is a plant lectin that contains the fluorescent dye AF594, which can be used to identify carbohydrate chains. Wheat germ agglutinin-AF594 can be used to assess abnormal glycosylation levels in the body. The specific glycosylation detection sites of Wheat germ agglutinin is bis-GlcNAc, SA.
    Wheat germ agglutinin-AF594
  • HY-138159
    Boc-Lys(Ac)-AMC
    		98.59%
    Boc-Lys(Ac)-AMC is a cell-permeable fluorometric HDAC substrate (Ex/Em = 355 nm/460 nm).
    Boc-Lys(Ac)-AMC
  • HY-D1602
    BODIPY FL-DHPE
    BODIPY FL DHPE is a green-fluorescent phospholipid probe. BODIPY FL DHPE labels lipid 1,2-dihexadecanoyl-sn-glycero-phosphoethanolamine (DHPE), labeled liposomes can be internalized by membrane fusion. BODIPY FL DHPE can be used for investigations of membrane surface and membrane fusion. (λex=505 nm, λem=511 nm).
    BODIPY FL-DHPE
  • HY-158082B
    TRITC-dextran, MW 40000
    TRITC-dextran (Tetramethyl rhodamine isothiocyanate glucan), MW 40000 is a TRITC (HY-D0791)-labeled neutral 40 kDa fluorescent polysaccharide probe. TRITC-dextran, MW 40000 forms a membrane layer on the surface of protocells composed of protamine/folate condensates, and is used to assess membrane fluidity via fluorescence recovery after photobleaching. TRITC-dextran, MW 40000 can also be used to evaluate the anti-bacterial invasion ability and colloidal stability of coated condensates, as well as analyze the permeability of vascular and lymphatic endothelial cell layers.
    TRITC-dextran, MW 40000
  • HY-W127832
    Ru(dpp)3(PF6)2
    		98.20%
    Ru(dpp)3(PF6)2 is a complex containing metallic ruthenium (Ru) and is a chemiluminescent oxygen probe. [Ru(dpp)3]2+ is a luminescent substance that can undergo metal-to-ligand charge transfer (MLCT), and fluorescence will appear during the transfer of Ru to the ligand. At the same time, the fluorescence of Ru(dpp)3(PF6)2 is effectively quenched by molecular oxygen, so it is widely used in biosensors, environmental monitoring, and materials science. The property of Ru(dpp)3(PF6)2, which oxidizes Ru2+ to Ru3+, has also been used to design and construct solid-state light-emitting electrochemical cells.
    Ru(dpp)3(PF6)2
  • HY-131409
    D-Val-Leu-Lys-pNA dihydrochloride
    		99.91%
    D-Val-Leu-Lys-pNA (D-Val-Leu-Lys-p-nitroanilide) dihydrochloride is a chromogenic peptide substrate that serves as a characteristic substrate for plasmin and plasminogen. D-Val-Leu-Lys-pNA dihydrochloride acts as a sensitive substrate for the DFE27 serine protease derived from Bacillus subtilis DC27. Catalyzed by plasmin, D-Val-Leu-Lys-pNA dihydrochloride binds and hydrolyzes to release p-nitroaniline (pNA), which can be detected colorimetrically at 405 nm as a measure of fibrinolytic activity.
    D-Val-Leu-Lys-pNA dihydrochloride
  • HY-15558A
    Hoechst 33258 trihydrochloride
    		99.51%
    Hoechst 33258 trihydrochloride 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 trihydrochloride
  • HY-W010042
    L-Glucose
    		99.90%
    L-Glucose (L-(-)-Glucose) is a stereoisomer of D-Glucose (HY-B0389), which does not readily enter the brain. L-Glucose can promote food intake. L-glucose is combined with a fluorescence detector to produce a fluorescent probe that can be used to visualize and characterize cancer cells. L-Glucose also can be used in the research to enhance memory in mice.
    L-Glucose
  • HY-D1244
    CO probe 1
    		99.88%
    CO probe 1 (probe 2) is a highly efficient fluorescent CO probe (Ex=493 nm) with an allyl ether reaction site. In the presence of PdCl₂, CO reduces Pd2+ to Pd0, triggering a Tsuji-Trost reaction that removes the allyl protecting group, releases fluorescein, and generates a significant fluorescence signal. CO probe 1 has high selectivity, rapid response (fluorescence enhancement of 150 times within 20 minutes), and low cytotoxicity, and can be used for real-time imaging of CO in living cells. CO probe 1 may be used to study pathological mechanisms involving CO signaling regulation, such as inflammation, vascular disease, or cancer.
    CO probe 1
  • HY-P2270
    Phalloidin-TRITC
    Phalloidin-TRITC is a fluorescein derivative of Phalloidin, which can specifically label myof lin and display red fluorescence when labeled and can be observed using Tesred channels.
    Phalloidin-TRITC
  • HY-D0893
    NSP-SA-NHS
    		99.65%
    NSP-SA-NHS is an acridinium ester that can be used for chemiluminescent immunoassay. A rapid and sensitive chemiluminescent immunoassay of Bisphenol A (BPA) with NSP-SA-NHS-labeled has been developed.
    NSP-SA-NHS
  • HY-D1903
    Fura Red AM
    Fura Red AM is a fluorescent probe that can be used to visualize Ca2+ distribution in the cytoplasm of undifferentiated cells. Fura Red AM operates at an excitation wavelength of 488 nm.
    Fura Red AM
  • HY-101898
    Indo-1 AM
    Calcium is an important part of the human body, usually in the form of calcium, a large number of bones and teeth of the human body, a small amount of blood and tissues. MCE calcium ion detection probe can specifically identify intracellular calcium ions, with high sensitivity, low cytotoxicity, increased AM acetylmethyl ester can enter the cell well, after being sheared by the intracellular esterase stay in the cell to bind to calcium ions, produce strong fluorescence, in addition, Mag-indo-1/AM and Mag-Fluo-4 AM at a certain concentration (usually 5 mM) can effectively identify intracellular magnesium ions.
    Indo-1 AM
  • HY-D0926
    Cy7.5
    		99.94%
    Cy7.5 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.
    Cy7.5
Cat. No. Product Name / Synonyms Application Reactivity