Cy5.5 Azide

Catalog#
Unit Size
Price (USD)
Availability
Qty
1059-1
1 mg
$105.00
In stock
1059-5
5 mg
$395.00
In stock
1059-25
25 mg
$1,295.00
In stock
1059-100
100 mg
$2,850.00
In stock

    The NIR-fluorescent Cy5.5 azide can be reacted with terminal alkynes via a copper-catalyzed click reaction (CuAAC). It also reacts with strained cyclooctyne via a copper-free “click chemistry” reaction to form a stable triazole and does not require Cu-catalyst or elevated temperatures. Cy5.5 is a water-soluble, pH-insensitive, bright fluorescent probe that can be used in place of Alexa Fluor® 680, DyLigh®t 680, or IRDye™ 680 and other dyes excitable at a wavelength at around 680 nm.

    Abs/Em Maxima
    678/694 nm
    Extinction Coefficient
    190,000
    Spectrally Similar Dyes
    Alexa Fluor® 680, IRDye® 680RD, DyLight® 680
    Molecular weight
    999.15
    CAS
    N/A
    Solubility
    Water, DMSO, DMF
    Purity
    >95% (HPLC)
    Appearance
    Blue solid
    Storage conditions
    -20°C. Desiccate
    Shipping conditions
    Ambient temperature

    The NIR-fluorescent Cy5.5 azide can be reacted with terminal alkynes via a copper-catalyzed click reaction (CuAAC). It also reacts with strained cyclooctyne via a copper-free “click chemistry” reaction to form a stable triazole and does not require Cu-catalyst or elevated temperatures.

    Cy5.5 Azide is a bright and photostable near-IR probe that spectrally similar to Alexa Fluor® 680, DyLight® 680, and IRDye® 680 dye. The Cy5.5 Azide is water-soluble, hydrophilic dye often a reagent of choice for assay where minimal non-specific binding and exceptional brightness is required. The fluorescence of Cy5.5 Azide is pH insensitive from pH 4 to pH 10 and produces minimal autofluorescence of biological specimens in this region of the spectrum. Fluorescence of this long-wavelength Cyanine dye is not visible to the human eye but is readily detected by most imaging systems.

    Cy®Dye is a trademark of GE Healthcare. Alexa Fluor® and DyLight® are registered trademark of Thermo Fisher Scientific. IRDye® is a registered trademark of Li-Cor, Inc

    Cy5.5

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