mPEG-CH2COONHS Ester

Methoxy-poly(ethylene glycol)-carboxymethyl N-hydroxysuccinimide ester (mPEG-CH2CONHS) is a monofunctional precision PEG derivative with a defined chain length. One end bears a methoxy group. The other end bears a carboxymethyl NHS ester group. 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. Capping one end defines the direction of derivatization, enabling the hydrophilic PEG segment to be attached to a target molecule and functional linkers of the required length to be constructed.

Customization available.