N-(Mal-PEG6)-N-bis(PEG3-Boc) is a branched PEG linker with a terminal maleimide group and two terminal Boc-protected amino groups. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. The Boc groups can be deprotected under mild acidic conditions to form the free amine. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.