Mal-PEG4-amine

Mal-PEG4-amine, a PEG linker containing a maleimide group and an amine group, features a hydrophilic PEG spacer that enhances its solubility in aqueous media. The amine group can react with carboxylic acids, activated NHS esters, and carbonyls (ketones, aldehydes) . The maleimide group reacts with thiol groups to form covalent bonds, enabling the conjugation of biomolecules with thiols.