H2N-PEG-NH2

Alpha,omega-diamino poly(ethylene glycol) (H2N-PEG-NH2) is a homobifunctional precision PEG derivative with a defined chain length. Both ends bear primary amine groups. Discrete chain lengths with different degrees of polymerization are available. The primary amine can react with activated carboxyl groups or NHS esters to form amide bonds and introduce carboxyl-containing functional moieties. 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.