Sulfo-Cyanine 5 NHS ester (A270297)

Sulfo-Cyanine 5 NHS ester

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® and DyLight 649 for all applications.

646 nm

271000 M^-1cm^-1

662 nm

0.28

0.04

0.04

95% (by ¹H NMR and HPLC-MS).

C₃₆H₄₀N₃KO₁₀S₂

777.95 kDa

Dark blue powder.

Very good in water. Good in DMF and DMSO.

Shipped at room temperature. Upon delivery, store in the dark at -20°C. Avoid prolonged exposure to light. Desiccate.

This product is for research use only. It is not intended for diagnostic or therapeutic use.