N-(Azido-PEG3)-N-bis(PEG1-t-butyl ester)

Description

N-(Azido-PEG3)-N-bis(PEG1-t-butyl ester) is developed as a branched PEG linker with a terminal azide group and two t-butyl esters. The azide group enables PEGylation via Click Chemistry. The t-butyl protected carboxyl groups can be deprotected under mild acidic conditions.