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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-145721D
    FAM labled Mongersen sodium
    FAM labled Mongersen sodiumis a FAM labled Mongersen sodium.
    FAM labled Mongersen sodium
  • HY-177618C
    FAM labled Beclanorsen sodium
    FAM labled Beclanorsen sodiumis a FAM labled Beclanorsen sodium.
    FAM labled Beclanorsen sodium
  • HY-W127781
    Rhod-2 triammonium
    Rhod-2 triammonium is a cell impermeant, red fluorescent calcium indicator. Rhod-2 triammonium 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 triammonium
  • HY-D2320
    ER Flipper-TR 28
    ER Flipper-TR 28 is a flipper probe with a small molecule fluorophore that can image membrane tension in the endoplasmic reticulum (ER). ER Flipper-TR 28 bears a pentafluorophenyl group and also reacts with protein thiolate on the ER surface facing the cytoplasm.
    ER Flipper-TR 28
  • HY-177652D
    Cy3 labled Onvuzosiran sodium
    Cy3 labled Onvuzosiran sodium is a Cy3 labled Onvuzosiran sodium.
    Cy3 labled Onvuzosiran sodium
  • HY-D2982
    BTP9-Neu5Ac
    BTP9-Neu5Ac is a fluorescent imaging probe specifically designed for detecting the neuraminidase (NA) sialidase activity of influenza viruses. BTP9-Neu5Ac can visualize the intracellular Golgi localization of the viral NA activity. BTP9-Neu5Ac can be used for precise and temporal monitoring of the key enzyme activities during the viral life cycle.
    BTP9-Neu5Ac
  • HY-D2885E
    RB-PEG5000-Mal
    RB-PEG5000-Mal (Rhodamine B-PEG5000-Mal) is a fluorescent dye composed of Rhodamine B (HY-Y0016), PEG and Maleimide (HY-W007324) (Mal). RB-PEG5000-Mal can be used for fluorescent labeling and imaging (Ex/Em=546/610 nm).
    RB-PEG5000-Mal
  • HY-D2044
    ATTO 532
    ATTO 532 is a new type of fluorescent dye with high fluorescence yield, which can be used for most labeling applications, maximum excitation/emission wavelength: 532/552 nm.
    ATTO 532
  • HY-149836A
    3-MeOARh-NTR chloride
    3-MeOARh-NTR chloride is an activatable imaging probe with high selectivity, and good stability. 3-MeOARh-NTR chloride possesses high selectivity and high signal-to-noise ratio for nitroreductase (NTR) detection, and serves as an efficient molecular tool for endogenous NTR detection.
    3-MeOARh-NTR chloride
  • HY-153488E
    Cy3 labled ISIS 2503 sodium
    Cy3 labled ISIS 2503 sodium is a Cy3 labled ISIS 2503 sodium.
    Cy3 labled ISIS 2503 sodium
  • HY-D1177
    Solvent orange 60
    Solvent orange 60 is a cyclic ketone dye commonly used in plastic materials such as eyeglass frames and has been shown to cause contact allergies.
    Solvent orange 60
  • HY-D2826C
    FITC-Chitosan (MW 10000)
    FITC-Chitosan (MW 10000) is a Chitosan labeled with FITC (HY-66019). FITC-Chitosan (MW 10000) can be used for fluorescent labeling and imaging.
    FITC-Chitosan (MW 10000)
  • HY-132593D
    FAM labled Rovanersen sodium
    FAM labled Rovanersen sodiumis a FAM labled Rovanersen sodium.
    FAM labled Rovanersen sodium
  • HY-D0292
    1,4-Bis(mesitylamino)anthraquinone
    1,4-Bis(mesitylamino)anthraquinone 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.
    1,4-Bis(mesitylamino)anthraquinone
  • HY-D1993
    ATTO 647 NHS ester
    ATTO 647 NHS ester is a fluorescent label targeting free amino groups. ATTO 647 NHS ester can undergo a nucleophilic reaction with the free amino groups of EF-C peptide via its activated carboxylic acid group to form a stable covalent conjugate. ATTO 647 NHS ester-labeled nanofibers not only retain retroviral transduction-enhancing activity but also maintain stable fluorescent signals in both buffer and cell culture systems. ATTO 647 NHS ester is suitable for detection applications including fluorescence spectroscopy, microscopy and flow cytometry. ATTO 647 NHS ester has been used in studies related to HIV-1 infection.
    ATTO 647 NHS ester
  • HY-D3231
    Ratio-Coppersensor-1
    Ratio-Coppersensor-1 is a selective ratiometric copper ion Fluorescent reporter (excitation wavelength: 480 nm; emission peak central wavelengths at 505 nm and 570 nm, respectively). Ratio-Coppersensor-1 exhibits extremely high selectivity for Cu+ at cellular concentrations, outperforming other competing metal ions, and shows an approximately 20-fold change in fluorescence ratio upon Cu+ binding. Ratio-Coppersensor-1 is capable of reflecting changes in Cu levels.
    Ratio-Coppersensor-1
  • HY-D1749
    C6 NBD L-threo-ceramide
    C6 NBD L-threo-ceramide is a cell-permeable analog of ceramides that is tagged with a fluorescent group C6 nitrobenzoxadiazole (C6 NBD). It is rapidly transferred between liposomes, labels the Golgi apparatus, and is metabolized to C6 NBD sphingomyelin in BHK cells and V79 fibroblasts.
    C6 NBD L-threo-ceramide
  • HY-D3005
    NpCy-4
    NpCy-4 is a reliable reporter for monitoring lysosomal pH and viscosity changes in real time during Autophagy (λex = 650 nm; λem = 660-740 nm). NpCy-4 demonstrates a superior signal-to-background ratio (SBR) for cellular imaging. NpCy-4 facilitates real-time, noninvasive diagnostic imaging of acute gastritis model with high contrast.
    NpCy-4
  • HY-D1357
    Alkyne MegaStokes dye 735
    Alkyne MegaStokes dye 735 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.
    Alkyne MegaStokes dye 735
  • HY-D2095
    Medical fluorophore 33
    Medical fluorophore 33 is a novel quinoline-isoquinoline salt. Medical fluorophore 33 exhibits a strong fluorescent signal, good microsomal stability and high biocompatibility in vivo. Medical fluorophore 33 has antitumor activity in colorectal cancer mice.
    Medical fluorophore 33
Cat. No. Product Name / Synonyms Application Reactivity