Description
PEI-g(25k)-PEG(5k)-Thiol, 20% PEG ratio consists of a branched PEI backbone with a molecular weight of 25 kDa and a PEG chain segment with a molecular weight of 5 kDa, with PEG making up 20% of the total polymer. The end carries a sulfhydryl group (thiol), a structure that can be used for further thiol reactions or targeted modifications.