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Sulfo-Cyanine5 (Sulfo-Cy5) is a water-soluble, far-red fluorescent dye used for labeling proteins, nucleic acids, and biomolecules. Known for its bright fluorescence, high photostability, and low background interference, Sulfo-Cy5 is ideal for fluorescence microscopy, flow cytometry, in vivo imaging, and bioconjugation.

Sulfo Cyanine5 Dye

Cat# Name Structure M.W. Purity Pricing
AP13198sulfo-Cyanine5 streptavidin
Quick view
≥95% Pricing
AP14968Sulfo-Cyanine5 dimethyl
Quick viewSulfo-Cyanine5 dimethyl
580.77≥95% Pricing
AP15237sulfo-Cyanine5 hydrazide
Quick viewsulfo-Cyanine5 hydrazide
656.83≥95% Pricing
AP12777Sulfo-Cyanine5 carboxylic acid
Quick viewSulfo-Cyanine5 carboxylic acid
681.88≥ (95%) Pricing
AP12773Sulfo-Cyanine5 alkyne
Quick viewSulfo-Cyanine5 alkyne
717.94≥ (95+%) Pricing
AP12774Sulfo-Cyanine5 amine
Quick viewSulfo-Cyanine5 amine
740.98≥ (95%) Pricing
AP14008Sulfo-Cy5 Acid
Quick viewSulfo-Cy5 Acid
750.89≥95% Pricing
AP12775Sulfo-Cyanine5 azide
Quick viewSulfo-Cyanine5 azide
762.98≥ (95%) Pricing
AP12483Sulfo Cy5 Maleimide
Quick viewSulfo Cy5 Maleimide
764.91≥95% Pricing
AP12781Sulfo-Cyanine5 NHS ester
Quick viewSulfo-Cyanine5 NHS ester
778.96≥ (95%) Pricing
AP12487Sulfo Cy5 Alkyne
Quick viewSulfo Cy5 Alkyne
787.96≥95% Pricing
AP13381sulfo-Cyanine5 tyramide
Quick viewsulfo-Cyanine5 tyramide
800.05≥95% Pricing
AP12780Sulfo-Cyanine5 maleimide
Quick viewSulfo-Cyanine5 maleimide
804.01≥ (95+%) Pricing
AP14279Sulfo-Bis-(N,N'-carboxylic acid)-Cy5
Quick viewSulfo-Bis-(N,N'-carboxylic acid)-Cy5
823.80≥95% Pricing
AP12484Sulfo Cy5 Azide
Quick viewSulfo Cy5 Azide
833≥95% Pricing
AP12482Sulfo-Cy5 NHS ester
Quick viewSulfo-Cy5 NHS ester
847.97≥95% Pricing
AP12782Sulfo-Cyanine5 tetrazine
Quick viewSulfo-Cyanine5 tetrazine
864.09≥ (95%) Pricing
AP14432Sulfo-Cy5-Tetrazine
Quick viewSulfo-Cy5-Tetrazine
920.10≥95% Pricing
AP14433Sulfo-Cy5-Methyltetrazine
Quick viewSulfo-Cy5-Methyltetrazine
934.10≥95% Pricing
AP12485Sulfo Cy5 Picolyl Azide
Quick viewSulfo Cy5 Picolyl Azide
953.11≥95% Pricing
AP12776Sulfo-Cyanine5 bis-NHS ester
Quick viewSulfo-Cyanine5 bis-NHS ester
976.14≥ (95%) Pricing
AP12778Sulfo-Cyanine5 DBCO
Quick viewSulfo-Cyanine5 DBCO
981.27≥ (95%) Pricing
AP12486Sulfo Cy5 DBCO
Quick viewSulfo Cy5 DBCO
1009.22≥95% Pricing
AP12783Sulfo-Cyanine5-PEG3-Biotin
Quick viewSulfo-Cyanine5-PEG3-Biotin
1037.36≥ (95%) Pricing
AP12779Sulfo-Cyanine5 dUTP
Quick viewSulfo-Cyanine5 dUTP
1282.86≥ (95%), testing in enzymatic reaction Pricing

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    Sulfo-Cyanine5 Dye: Spectral Properties and Applications

    Sulfo-Cyanine5 (Sulfo-Cy5) is a water-soluble, far-red fluorescent dye commonly used in biological and biomedical research. Its sulfonate groups enhance water solubility, making it ideal for labeling proteins, nucleic acids, and other biomolecules in aqueous environments. With strong NIR fluorescence, high photostability, and minimal background interference, Sulfo-Cy5 is widely used in imaging and bioconjugation applications.

    Spectral Properties of Sulfo-Cyanine5 Dye:

    • Absorption Maximum: ~646 nm
    • Emission Maximum: ~662 nm
    • Stokes Shift: ~16 nm
    • High Quantum Yield: Delivers bright and efficient far-red fluorescence.
    • Enhanced Solubility: Sulfonate groups improve performance in water-based assays.

    Applications of Sulfo-Cyanine5 Dye:

    • Fluorescence Microscopy: Offers high-contrast imaging of cellular structures.
    • Flow Cytometry: Provides distinct signals for precise cell sorting and analysis.
    • In Vivo Imaging: Ideal for deep tissue imaging with low background interference.
    • Bioconjugation: Efficiently labels proteins, antibodies, and nucleic acids for various assays.
    • Molecular Probes: Used in bioanalytical assays to study biomolecular interactions.

    Sulfo-Cy5’s bright far-red fluorescence, water solubility, and excellent photostability make it a versatile and reliable dye for advanced research and diagnostic applications.