t-Boc-Aminooxy-PEG8-alcohol

t-Boc-Aminooxy-PEG8-alcohol is an aqueous soluble reagent comprising a Boc-protected aminooxy group and an alcohol group. The protected aminooxy can be deprotected under mild acidic conditions and then can react with an aldehyde group to form a stable oxime linkage. The hydroxyl group enables further derivatization or replacement with other reactive functional groups.