N3-PEG-NH2 (MW 2000)

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.