N3-PEG-NH2 (MW 2000) (Azide-PEG-Amine (MW 2000)) is a heterobifunctional PEG compound that features azide and amine groups at the termini of the PEG chain. It serves as a crucial crosslinker with a PEG backbone. The azide group can participate in molecular conjugation via chemical reactions, while the amine group reacts with carboxylic acids or NHS esters.
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