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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-139816
    BTNPO
    BTNPO is a unimolecular two-photon fluorescent probe.
    BTNPO
  • HY-P0030
    5-Tamra-DRVYIHP
    5-Tamra-DRVYIHP i a Peptide with TAMRA labeling oligonucleotide.
    5-Tamra-DRVYIHP
  • HY-D1274A
    Sulfo-cyanine3 azide sodium
    Sulfo-cyanine3 azide sodium a water-soluble azide cyanine dye and fluorescent probe (Ex/Em=548/563 nm). Sulfo-cyanine3 azide sodium can be involved in synthesis of fused tricyclic heterocycles, produces immunostimulatory agents. 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.
    Sulfo-cyanine3 azide sodium
  • HY-D2153
    Cy5-PEG2-SCO
    Cy5-PEG2-SCO is a dye derivative of Cyanine 5 (Cy5) (HY-D0821) containing 2 PEG units. Cy5-PEG2-SCO has a SCO group that can be covalently bonded to the amino group. SCO is often used to react with amino acid residues of proteins or peptides, particularly lysine.
    Cy5-PEG2-SCO
  • HY-D2124
    Cy3-PEG7-SCO
    Cy3-PEG7-SCO is a dye derivative of Cyanine 3 (Cy3) (HY-D0822) containing 7 PEG units. Cy3-PEG7-SCO has a SCO group that can be covalently bonded to the amino group. SCO is often used to react with amino acid residues of proteins or peptides, particularly lysine.
    Cy3-PEG7-SCO
  • HY-D2013
    ATTO 488 hydrazid
    ATTO 488 hydrazid is a hydrazide derivative of ATTO 488 with excitation/emission maxima at 500/520 nm.
    ATTO 488 hydrazid
  • HY-D1547
    1-(3',6'-Bis(ethylamino)-2',7'-dimethyl-3-oxospiro[isoindoline-1,9'-xanthen]-2-yl)-3-phenylurea
    1-(3',6'-Bis(ethylamino)-2',7'-dimethyl-3-oxospiro[isoindoline-1,9'-xanthen]-2-yl)-3-phenylurea (compound 1a) can be used as a fast-responsive fluorescent gold ion probe for detection of gold ions in water and synthetic products.
    1-(3',6'-Bis(ethylamino)-2',7'-dimethyl-3-oxospiro[isoindoline-1,9'-xanthen]-2-yl)-3-phenylurea
  • HY-177630D
    Cy3 labled Erisonersen sodium
    Cy3 labled Erisonersen sodium is a Cy3 labled Erisonersen sodium.
    Cy3 labled Erisonersen sodium
  • HY-D1560
    FG 488 DHPE
    FG 488 DHPE is a lipid-coupled fluorochrome, has be used as a fluorophore Oregon Green 488. FG 488 DHPE monitors acidification of lipid vesicles with λex/λem=508/534 nm.FG 488 DHPE is also used for Hv1-induced proton translocation quantificatio with λex/λem=508/534 nm as well.
    FG 488 DHPE
  • HY-156865C
    Cy3 labled siFLUC sodium
    Cy3 labled siFLUC sodium is a Cy3 labled siFLUC sodium.
    Cy3 labled siFLUC sodium
  • HY-136784
    Rhod-2 potassium
    Rhod-2 potassium is a cell impermeant, red fluorescent calcium indicator. Rhod-2 potassium exhibits a significant shift in fluorescence intensity upon calcium binding (ex max=549 nm; calcium-free v. ex/em max=552/581 nm; calcium-bound). Unlike the UV-excitable indicators Fura-2 and Indo-1 (HY-D0121), there is no accompanying spectral shift.
    Rhod-2 potassium
  • HY-N15888
    Palmitic acid - lissamine rhodamine
    Palmitic acid-lissamine rhodamine is a lissamine rhodamine-labeled Palmitic acid (HY-N0830).
    Palmitic acid - lissamine rhodamine
  • HY-P4401A
    Z-VEID-AFC TFA
    Z-VEID-AFC TFA is the trifluoroacetate salt of Z-VEID-AFC (HY-P4401). Z-VEID-AFC TFA is a fluorescent substrate for caspase-6. When Z-VEID-AFC TFA is cleaved by caspase-6, 7-amino-4-trifluoromethylcoumarin (AFC) is released, and its fluorescence can be used to quantify caspase-6 activity (Ex/Em: 400/505 nm) .
    Z-VEID-AFC TFA
  • HY-131097
    Malachite green isothiocyanate
    Malachite green isothiocyanate is an amine-reactive probe that reacts with amines to give the corresponding thiourea. Malachite green isothiocyanate is a reagent that has been used for the measurement of concentration of protein.
    Malachite green isothiocyanate
  • HY-W180804
    Coumarin 334
    Coumarin 334 (Coumarin 521) is a laser dye with rigid structure.
    Coumarin 334
  • HY-D2946
    CLIP-TMR
    CLIP-TMR (BC-TMR) is a TMR-labeled CLIP tag fluorescent probe. CLIP-TMR combines the high specificity recognition ability of the CLIP-tag and the excellent optical performance of the TMR fluorophore, and can be used for the specific labeling and visualization of the HCV NS5A protein.
    CLIP-TMR
  • HY-D0119
    IPB
    IPB 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.
    IPB
  • HY-D3053
    5(6)-Rhodamine 6G NHS ester
    5(6)-Rhodamine 6G NHS ester is a reactive ester fluorescent reagent based on Rhodamine 6G (HY-D0309). NHS ester is a highly reactive ester capable of covalently coupling with primary amine groups in molecules such as proteins, peptides, amino sugars, and nucleic acids to form stable amide bonds (Ex/Em = 526/547 nm).
    5(6)-Rhodamine 6G NHS ester
  • HY-D1273
    Vat Blue 6
    Vat Blue 6 (Blue K) is a vat dye that used in textile dyeing processes.
    Vat Blue 6
  • HY-D0924A
    Cy5.5 acetate
    Cy5.5 acetate 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.
    Cy5.5 acetate
Cat. No. Product Name / Synonyms Application Reactivity