HO-PEG6-t-butyl ester is a high-purity PEG reagent with a hydroxyl for functionalization and a tert-butyl ester for acid-cleavable protection, specifically connected by PEG6 for solubility and flexibility.
Polyethylene Glycol PEG Linkers > Hydroxy PEG > Hydroxy-PEG-t-butyl ester
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