PEG NHS ester

Picture of PEG NHS ester formula

The NHS activated form reacts readily with primary amines to form an amide bond. The reaction proceeds in either organic solvents, or in aqueous solutions. If performed in aqueous basic solution, the competing hydrolysis reaction may be significant.

Cat Nr Product CAS Number n MW
21138-2790 Maleimidopropionyl-PEG NHS ester 27 1570.8
38157-0795 PEG NHS ester disulfide 947601-98-1 7 1109.3