Azido-PEG4-t-butyl ester is a high-purity PEG linker with an azide and a t-butyl ester on a PEG4 spacer, specifically designed for click chemistry, controlled deprotection, and flexible conjugation.
Polyethylene Glycol PEG Linkers > Azide PEG > Azido-PEG-t-butyl ester
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