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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-D1093
    Carboxy SNARF-1, acetoxymethyl ester (5/6-mixture)
    Carboxy SNARF-1, acetoxymethyl ester (5/6-mixture) is a fluorescent probe that is sensitive to pH. Carboxy SNARF-1, acetoxymethyl ester (5/6-mixture) can be used for measurement of intracellular pH.
    Carboxy SNARF-1, acetoxymethyl ester (5/6-mixture)
  • HY-D2839
    m-PEG10000-PEI-Cy5
    mPEG-PEI-Cy5 (MW 10000) is a fluorescent dye composed of polyethylene glycol (PEG), FITC (HY-66019) and a Biotin (HY-B0511). mPEG-PEI-Cy5 (MW 10000) can be used for fluorescent labeling and imaging.
    m-PEG10000-PEI-Cy5
  • HY-P2673A
    Lys-Arg-Thr-Leu-Arg-Arg acetate
    Lys-Arg-Thr-Leu-Arg-Arg (KRTLRR) acetate is a hexapeptide. Lys-Arg-Thr-Leu-Arg-Arg acetate is a substrate of EGF receptor protein kinase C and can be used to measure protein kinase C activity.
    Lys-Arg-Thr-Leu-Arg-Arg acetate
  • HY-D1489
    Ethyl eosin
    Ethyl eosin is a fluorescent dye with an absorption peak at 527 nm and an absorption shoulder at 487 nm.
    Ethyl eosin
  • HY-118262
    Resorufin acetate
    		98.00%
    Resorufin acetate is a fluorescent dye that selectively detects hydrazine.
    Resorufin acetate
  • HY-15621A
    DMA trihydrochloride
    		98.01%
    DMA trihydrochloride is a fluorescent compound (λex=340 nm, λem=478 nm).
    DMA trihydrochloride
  • HY-162422
    Mito-DK
    Mito-DK is a small-molecule fluorescent dye with the capability of crosstalk-free response to polarity and mtDNA as well as mitochondrial morphology. Mito-DK has high photostability, low cytotoxicity, and good mitochondria-targeting properties. Mito-DK can be used for real-time tracking and multidimensional assessing of mitochondria-related pyroptosis in cancer cells.
    Mito-DK
  • HY-110337
    FFN 102 mesylate
    		99.00%
    FFN 102 mesylate is a synthetic biogenic neurotransmitter analogue with PH-dependent fluorescence and electrical activity.
    FFN 102 mesylate
  • HY-D2246
    ICG-SH
    ICG-SH?is a negatively charged polymethylcyanine dye.
    ICG-SH
  • HY-D0159
    ZnAF-1F
    ZnAF-1F is a potent fluorophore for with an Kd value of 2.2 nM. ZnAF-1F can be used as fluorescent probes for Zn2+ in cells. ZnAF-1F shows λ excitation of 489 nm and λ emission of 514 nm.
    ZnAF-1F
  • HY-D2377
    F8
    		98.25%
    F8 is a small molecule GPR84 fluorescent probe that can visualize and detect GPR84 protein levels at the cellular and tissue levels.
    F8
  • HY-D1427
    Di-2-ANEPEQ
    Di-2-ANEPEQ is a voltage sensitive membrane potential fluorescence dye. Di-2-ANEPEQ can be used for the evaluation of voltage-sensitive fluorescence dyes for monitoring neuronal activity in the embryonic central nervous system.
    Di-2-ANEPEQ
  • HY-W053871
    4-Methylphthalimide
    		99.96%
    4-Methylphthalimide is a stain with biological research applications.
    4-Methylphthalimide
  • HY-D0134
    NIR-797-isothiocyanate
    		99.26%
    NIR-797-isothiocyanate 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.
    NIR-797-isothiocyanate
  • HY-P3106
    (Z-Ala-Ala-Ala-Ala)2Rh110
    (Z-Ala-Ala-Ala-Ala)2Rh110 is a sensitive fluorogenic elastase substrate. The colorless and nonfluorescent (Z-Ala-Ala-Ala-Ala)2Rh110 is selectively cleaved by elastase to yield the highly fluorescent compound rhodamine 110, which can be analyzed with an excitation wavelength of 485 nm and emission wavelength of 525 nm.
    (Z-Ala-Ala-Ala-Ala)2Rh110
  • HY-136404
    Melanin probe-1
    		98.06%
    Melanin probe-1 is an 18F-picolinamides based PET probe. Melanin probe-1 can be used for PET imaging of malignant melanoma. Melanin probe-1 exhibits high tumor targeting efficiency, excellent tumor imaging contrasts, desirable biodistribution patterns, and good in vivo stability.
    Melanin probe-1
  • HY-155327
    Cy3-PEG2-endo-BCN
    Cy3-PEG2-endo-BCN is a dye derivative of Cyanine 3 (Cy3) (HY-D0822) containing 2 PEG units. Cy3-PEG2-endo-BCN contains the lyophilic bidentate macrocyclic ligand endo-BCN, which can further synthesize macrocyclic complexes. In click chemistry, endo-BCN can react with molecules containing azide groups to form stable triazoles in the absence of catalysts.
    Cy3-PEG2-endo-BCN
  • HY-D0193A
    Ponceau 4R (85%)
    Ponceau 4R (85%)(Acid Red 18 (85%); New Coccine (85%))is a synthetic colourant that may be used as a food colouring. Ponceau 4R (85%)is a strawberry red azo dye which can be used in a variety of food products, and is usually synthesized fromaromatic hydrocarbons; it is stable to light, heat, and acid but fades in the presence of ascorbic acid.
    Ponceau 4R (85%)
  • HY-D2381
    AF 488 maleimide
    AF 488 maleimide is a thiol-reactive dye for labeling of protein SH groups, and it can be used to attach AF 488 fluorophore to proteins and peptides containing cysteine residues, as well as to other thiolated molecules. AF488 exhibits the λem and λex wavelength of 520 nm and 470 nm, respectively.
    AF 488 maleimide
  • HY-D0305
    Tropaeolin O
    Tropaeolin O is an acidic monoazo dye that undergoes a coupling reaction under pH=10.5 conditions to form a blue disazo dye. Tropaeolin O can be used for the determination of palladium(II), osmium(IV), albumin, and casein.
    Tropaeolin O
Cat. No. Product Name / Synonyms Application Reactivity