N-(Mal-C6-carbonyl)-N-bis(PEG8-NHS ester) is a branched PEG linker composed of one maleimide group and two active NHS ester functional groups. The NHS esters readily react with amine containing molecules such as proteins and peptides, enabling efficient conjugation. The maleimide group selectively reacts with thiol groups, allowing site-specific modification. The PEG moiety enhances aqueous solubility and provides improved biocompatibility and flexibility.
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