N3-PEG-NH2 (MW 40000) [Azide-PEG-Amine (MW 40000)] is a heterobifunctional PEG compound featuring an azide group and an amine group at its termini. This compound serves as an essential crosslinking agent with a PEG chain. The azide moiety can participate in chemical reactions for molecular conjugation, while the amine group can react with carboxylic acids or NHS esters.
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