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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-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-D1458
    Peroxyfluor 1
    Peroxyfluor 1 is a cell-permeable probe for H2O2. Peroxyfluor 1 represents a first-generation, green-fluorescent probe.
    Peroxyfluor 1
  • HY-120601
    Alizarin Red S sodium
    Alizarin Red S sodium is an anthraquinone derivative dye. When combined with cations such as calcium ions, the functional group of Alizarin Red S sodium can form a coordination bond with the cation through the oxygen atom to show orange-red fluorescence. Alizarin Red S sodium can be used for screening of calcium compounds in synovial fluid and detecting osteoblast differentiation, and can also be used for bone staining in mice. Excitation/emission wavelength: 500/570 nm.
    Alizarin Red S sodium
  • HY-D0965
    Procion Blue HB
    Procion Blue HB (Reactive Blue 2) is a purinergic antagonist.
    Procion Blue HB
  • HY-D0047
    5-CFDA
    		98.22%
    5-CFDA is a common aliphatic luciferin-line organism. CFDA conducts free diffusion into cells, and then it is hydrolyzed into carboxyl fluorescein (CF) by intracellular non-specific lipase. CF containing portion contains an additional negative charge so that it is better retained in cells, compared to fluorescein dyes.
    5-CFDA
  • HY-19204
    Zinc phthalocyanine
    		≥98.0%
    Zinc phthalocyanine (ZnPc) is commonly applied in industry (catalysts, photoconductors) and biomedical (photodynamic therapy, PDT). Zinc phthalocyanine can be used to photooxidise cyclohexane and is promising for research of solar-cell applications.
    Zinc phthalocyanine
  • HY-W011009
    PTCDA
    		≥98.0%
    PTCDA is an organic dye molecule and an organic semiconductor.
    PTCDA
  • HY-111956B
    D-Ala-Lys-AMCA hydrochloride
    		99.60%
    D-Ala-Lys-AMCA hydrochloride is a known proton-coupled oligopeptide transporter 1 (PEPT1) substrate that emits blue fluorescence. D-Ala-Lys-AMCA hydrochloride may be transported into liver cancer cells and Caco-2 cells based on fluorescence analysis. D-Ala-Lys-AMCA hydrochloride can be used for characterizing PEPT1-specific substrates or inhibitors.
    D-Ala-Lys-AMCA hydrochloride
  • HY-D0073
    2,3-Diaminonaphthalene
    		99.44%
    2,3 Diaminonaphthalene is a highly selective colorimetric and fluorometric reagent for selenium ion detection and also used for the fluorometric determination of nitrite.
    2,3-Diaminonaphthalene
  • HY-D1450
    IR-1048
    IR-1048 (S01448) is a dye and also is a photothermal agent. IR-1048 can be used for the research of tumor diagnosis.
    IR-1048
  • HY-D1119C
    AF647-NHS ester triTEA
    AF647-NHS ester is an analogue of Alexa Fluor 647 (AF647), which has excitation wavelength (λex) of 635 nm (conventional fluorescence detection)/620 nm (instantaneous detection).
    AF647-NHS ester triTEA
  • HY-123629
    TAMRA-PEG3-Azide
    TAMRA-PEG3-Azide is a dye derivative of TAMRA (HY-135640) containing 3 PEG units. TAMRA-PEG3-Azide contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    TAMRA-PEG3-Azide
  • HY-D0042
    NBD-Cl
    		99.52%
    NBD-Cl is a nonfluorescent reagent which becomes highly fluorescent after reaction with thiol or amino groups.
    NBD-Cl
  • HY-D0925A
    Cy5.5-SE (DIPEA)
    Cy5.5-SE (Cyanine5.5 NHS ester) DIPEA 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. Storage: protect from light.
    Cy5.5-SE (DIPEA)
  • HY-138159
    Boc-Lys(Ac)-AMC
    		99.53%
    Boc-Lys(Ac)-AMC is a cell-permeable fluorometric HDAC substrate (Ex/Em = 355 nm/460 nm).
    Boc-Lys(Ac)-AMC
  • HY-D0893
    NSP-SA-NHS
    		99.72%
    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-137784
    Boc-Val-Pro-Arg-AMC hydrochloride
    		99.43%
    Boc-Val-Pro-Arg-AMC hydrochloride is a sensitive fluorogenic substrate for measuring trypsin-like serine proteases activity.
    Boc-Val-Pro-Arg-AMC hydrochloride
  • HY-D1428
    Di-4-ANEPPDHQ
    		99.00%
    Di-4-ANEPPDHQ, a fluorescent probe for the visualisation of membrane microdomains in living Arabidopsis thaliana cells.
    Di-4-ANEPPDHQ
  • HY-111377
    Amine-PEG3-Biotin
    		98.41%
    Amine-PEG3-Biotin is a signal amplification label containing a biotin group and a terminal primary amine group.
    Amine-PEG3-Biotin
  • HY-D1224
    Chlorophenol red-β-D-galactopyranoside
    		98.58%
    Chlorophenol red-β-D-galactopyranoside is a long-wavelength dye, which has been widely used for colorimetric assays. Chlorophenol red-β-D-galactopyranoside is also a β-galactosidase substrate commonly used in recombinant yeast oestrogenic assays.
    Chlorophenol red-β-D-galactopyranoside
Cat. No. Product Name / Synonyms Application Reactivity