CbzNH-PEG-NHCbz

Alpha,omega-bis(benzyloxycarbonyl-protected amino) poly(ethylene glycol) (CbzNH-PEG-NHCbz) is a homobifunctional precision PEG derivative with a defined chain length. Both ends bear Cbz-protected amine groups. 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. Identical reactive sites at both ends support molecular bridging or derivatization on both sides. The conjugation scheme can be designed around the number of target sites.

Customization available.