mPEG-CH2CH2COONHS Ester

Methoxy-poly(ethylene glycol)-carboxyethyl N-hydroxysuccinimide ester (mPEG-CH2CH2CONHS) is a monofunctional precision PEG derivative with a defined chain length. One end bears a methoxy group. The other end bears a carboxyethyl NHS ester group. Discrete chain lengths with different degrees of polymerization are available. The carboxyethyl NHS ester can couple to primary amines while retaining an extended local spacer for designing different conjugation distances. 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.