mPEG-CH2CH2COOH

Methoxy-poly(ethylene glycol)-carboxyethyl (mPEG-CH2CH2COOH) is a monofunctional precision PEG derivative with a defined chain length. One end bears a methoxy group. The other end bears a carboxyethyl group. Discrete chain lengths with different degrees of polymerization are available. The carboxyethyl group can be activated to couple with amine-containing components. Its two methylene groups provide a local spacer distinct from a carboxymethyl linker. 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.