Sulfo-Cyanine5 NHS ester

Cat. # Quantity Price Lead time
13320 1 mg $110.00 in stock
23320 5 mg $290.00 in stock
43320 25 mg $690.00 in stock
53320 50 mg $1270.00 in stock
63320 100 mg $1990.00 in stock

Water soluble Cyanine 5 succinimidyl ester (SE), an equivalent of Cy5® NHS ester, for the labeling of various amine-containing molecules in aqueous phase without use of any organic co-solvent. This product is therefore particularly useful for the labeling of proteins which denature in the presence of organic co-solvents, as well as for proteins with low solubility.

Sulfo-Cyanine 5 is an analog of Cy5®, one of the most popular fluorophores which is compatible with various equipment such as plate readers, microscopes, and imagers.

This dye is highly hydrophilic and water-soluble. A non-sulfonated analog is also available.

Can be used as a replacement for Cy5®, Alexa Fluor 647, DyLight 649 for all applications.

Sulfo-Cyanine 5 absorbance and emission spectra

Sulfo-Cyanine 5 absorbance and emission spectra

Customers also purchased with this product

Sulfo-Cyanine5 maleimide

Thiol reactive, water soluble cyanine dye for Cy5® channel.

Cyanine5 azide

Cyanine5 azide is a reagent for Click Chemistry labeling with Cyanine5, a popular fluorescent dye.

Cyanine5.5 azide

Far red / near infrared fluorescent Cyanine5.5 dye derivative for Click Chemistry.

General properties

Appearance: dark blue powder
Molecular weight: 777.95
Molecular formula: C36H40N3KO10S2
Solubility: very good in water, good in DMF and DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download

Spectral properties

Excitation maximum, nm: 646
ε, L⋅mol−1⋅cm−1: 271000
Emission maximum, nm: 662
Fluorescence quantum yield: 0.28
CF260: 0.04
CF280: 0.04

Product citations

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