NHSOOCCH2-PEG-CH2COONHS Ester

Alpha,omega-bis(carboxymethyl N-hydroxysuccinimide ester) poly(ethylene glycol) (NHSCOCH2-PEG-CH2CONHS) is a homobifunctional precision PEG derivative with a defined chain length. Both ends bear carboxymethyl NHS ester groups. Discrete chain lengths with different degrees of polymerization are available. The carboxymethyl NHS ester can directly couple to primary-amine-containing components, enabling comparisons of the short spacing between the activated site and the polyether chain. Identical reactive sites at both ends support molecular bridging or derivatization on both sides. The conjugation scheme can be designed around the number of target sites.

Customization available.