mPEG-CH2CONHNH2

Methoxy-poly(ethylene glycol)-carboxymethyl hydrazide (mPEG-CH2CONHNH2) is a monofunctional precision PEG derivative with a defined chain length. One end bears a methoxy group. The other end bears a carboxymethyl hydrazide group. Discrete chain lengths with different degrees of polymerization are available. The hydrazide can condense with aldehydes or ketones to form hydrazone bonds. The carboxymethyl moiety retains a short spacer to 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.