Cy5 Maleimide

Catalog#
Unit Size
Price (USD)
Availability
Qty
1004-1
1 mg
$95.00
In stock
1004-5
5 mg
$290.00
In stock
1004-25
25 mg
$595.00
In stock
1004-100
100 mg
$1,450.00
In stock

Water-soluble Cy5 Maleimide is the most commonly used sulfhydryl-reactive fluorescent labeling reagents for preparing far-red-fluorescent bioconjugates. Cy5 conjugates are very bright, photostable, pH insensitive and produce minimal autofluorescence of biological specimens in this region of the spectrum.

Abs/Em Maxima
649/671 nm
Extinction Coefficient
250,000
Flow Cytometry Laser Line
633 or 635 nm
Microscopy Laser Line
633 or 635 nm
Spectrally Similar Dyes
Alexa Fluor® 647, CF™ 647 Dye, DyLight™649
Molecular weight
764.91 (protonated)
CAS
n/a
Solubility
Water, DMSO, DMF
Purity
>95% (HPLC)
Appearance
Blue solid
Storage conditions
-20°C. Desiccate
Shipping conditions
Ambient temperature

Water-soluble Cy5 Maleimide is the most commonly used sulfhydryl-reactive fluorescent labeling reagents for preparing far-red-fluorescent bioconjugates. Cy5 conjugates are very bright, photostable, pH insensitive and produce minimal autofluorescence of biological specimens in this region of the spectrum.

Cy5 Amine (also sold under the Sulfo-Cyanine5 Amine name) is far-red fluorescent probe is water-soluble, and its fluorescence is pH-insensitive from pH 4 to pH 10. Its excitation peak is ideally suited for the 633 nm or 647 nm laser lines and its absorption and emission spectra are almost identical to those of Alexa Fluor® 647, CF® 647 Dye, or any other Cyanine5 based fluorescent dyes.

This sulfonated dye is also known as sulfo-Cyanine5 Maleimide.

Cy®Dye is a trademark of GE Healthcare.

Cy5

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