Azido-PEG2-CH2CO2tBu

Azido-PEG2-CH2CO2-t-Bu is a azide containing PEG molecule with a t-butyl ester. The azide group is reactive with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The t-butyl protected carboxyl group can be deprotected under acidic conditions.

Colorless oil