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Cyanine 7 (Cy7) dye is a near-infrared fluorescent dye used in research and medical applications. With excitation and emission between 750-800 nm, Cy7 provides deep tissue imaging with minimal autofluorescence. It’s ideal for microscopy, flow cytometry, and in vivo imaging, offering high stability, bright fluorescence, and low toxicity.

Cyanine7 Dye

Cat# Name Structure M.W. Purity Pricing
AP12743Cyanine7 carboxylic acid
Quick viewCyanine7 carboxylic acid
585.22≥ (95%) Pricing
AP12740Cyanine7 alkyne
Quick viewCyanine7 alkyne
622.28≥ (95%) Pricing
AP12746Cyanine7 hydrazide
Quick viewCyanine7 hydrazide
635.71≥ (95%) Pricing
AP12742Cyanine7 azide
Quick viewCyanine7 azide
667.33≥ (95%) Pricing
AP12745Cyanine7 dicarboxylic acid
Quick viewCyanine7 dicarboxylic acid
685.33≥ (95%) Pricing
AP12747Cyanine7 maleimide
Quick viewCyanine7 maleimide
707.34≥ (95%) Pricing
AP12741Cyanine7 amine
Quick viewCyanine7 amine
719.87≥ (95%) Pricing
AP12748Cyanine7 NHS ester
Quick viewCyanine7 NHS ester
733.64≥ (95%) Pricing
AP12749Cyanine7 tetrazine
Quick viewCyanine7 tetrazine
768.45≥ (95%) Pricing
AP14292N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7
Quick viewN-(Ac-PEG3)-N'-(azide-PEG3)-Cy7
792.40≥95% Pricing
AP14211N-(m-PEG4)-N'-(azide-PEG4)-Cy7
Quick viewN-(m-PEG4)-N'-(azide-PEG4)-Cy7
852.50≥95% Pricing
AP14288N,N'-bis-(azide-PEG3)-chlorocyclohexenyl Cy7
Quick viewN,N'-bis-(azide-PEG3)-chlorocyclohexenyl Cy7
894.00≥95% Pricing
AP12744Cyanine7 DBCO
Quick viewCyanine7 DBCO
995.13≥ (95%) Pricing
AP15274Merocyanine retinal analog (MCRA)
Quick viewMerocyanine retinal analog (MCRA)
267.372≥ (95%) Pricing
AP12570Cy7 Alkyne
Quick viewCy7 Alkyne
1010.22≥95% Pricing
AP14066Cy7 Azide
Quick viewCy7 Azide
1056.27≥95% Pricing
AP12588Cy7 NHS Ester
Quick viewCy7 NHS Ester
1098.28 (protonated)≥90% Pricing
AP12566Cy7 Methyltetrazine
Quick viewCy7 Methyltetrazine
1184.42≥95% Pricing
AP12605Cy7 Picolyl Azide
Quick viewCy7 Picolyl Azide
1203.43≥95% Pricing
AP12567Cy7 DBCO
Quick viewCy7 DBCO
1259.53 (protonated)≥95% Pricing
AP14067Cy7 Gly-Gly-Gly
Quick viewCy7 Gly-Gly-Gly
 1374.66 (protonated)≥95% Pricing

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    Cyanine 7 (Cy7) Dye: Spectral Properties and Applications

    Cyanine 7 (Cy7) is a near-infrared fluorescent dye widely used in advanced imaging applications, including in vitro labeling and in vivo imaging. Its strong NIR absorbance and emission make it ideal for deep tissue imaging with minimal background interference.

    Spectral Properties of Cyanine 7 (Cy7) Dye:

    • Absorption Maximum: ~750 nm
    • Emission Maximum: ~775 nm
    • Stokes Shift: ~25 nm
    • High Quantum Yield: Delivers bright and efficient fluorescence.
    • Photostability: Resists photobleaching, providing reliable long-term imaging.

    Applications of Cyanine 7 (Cy7) Dye:

    • In Vivo Imaging: Ideal for deep tissue imaging with low background noise.
    • Fluorescence Microscopy: Provides clear, high-resolution imaging of cellular structures.
    • Flow Cytometry: Offers distinct signals for precise cell sorting and analysis.
    • Molecular Probes: Used for labeling proteins, nucleic acids, and other biomolecules.

    Cy7’s bright near-infrared fluorescence, excellent photostability, and low background make it a top choice for researchers needing reliable, deep tissue imaging in biological and biomedical applications.