HO-PEG2-t-butyl ester is a high-purity PEG derivative with a hydroxyl group for functionalization and a tert-butyl ester for acid generation, connected by a PEG2 spacer for solubility and flexibility.
Polyethylene Glycol PEG Linkers > Hydroxy PEG > Hydroxy-PEG-t-butyl ester
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