Sulfo-Cyanine 3 NHS ester [equivalent to Sulfo-Cy3(R) NHS ester]

The water-soluble, amino-reactive sulfo-Cyanine3 NHS ester efficiently labels proteins and peptides in purely aqueous solutions without requiring organic co-solvents. It is particularly ideal for proteins with low solubility or those prone to denaturation. This dye is sulfonated, hydrophilic, and water-soluble. For applications requiring a non-sulfonated version, Cyanine3 NHS ester is also available. This product serves as an analog of Cy3(R) NHS ester and is a suitable replacement for Cy3(R) and DyLight 549 in all applications. Chemical Properties Storage Upon receipt, store at -20°C in the dark. Protect from light and moisture. When stored as indicated, Sulfo-Cyanine 3 NHS ester is stable for at least 1 year. This product is for Research Use Only· Not for Human or Veterinary or Therapeutic Use CAS number 1424150-38-8 Formula C40H54N4O10S2 Molecular Weight 815.01 HPLC Purity >95% lambdaabs (nm) 548 epsilonmax (M-1 cm-1) 1.62x10^5 lambdafl (nm) 563 CF260 =epsilon260/epsilonmax NA CF280 =epsilon280/epsilonmax