Azido-PEG7-4-nitrophenyl carbonate is a bifunctional PEG linker consisting of a nitrophenyl group that is reactive towards the amino-containing biomolecules. The azide(N3) group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The PEG7 linker enhances water-solubility.
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