mPEG-NHCbz

Methoxy-poly(ethylene glycol)-benzyloxycarbonyl-protected amino (mPEG-CbzNH) is a monofunctional precision PEG derivative with a defined chain length. One end bears a methoxy group. The other end bears a Cbz-protected amine group. Discrete chain lengths with different degrees of polymerization are available. The Cbz-protected end retains a releasable amine precursor, allowing amine coupling and transformations at the other terminus to be performed sequentially. 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.