4-Arm-PEG-Maleimide (MW 3400)

4-Arm-PEG-Maleimide (MW 3400) (4-Arm-PEG-Mal (MW 3400) ) is a PEG derivative modified with maleimide, facilitating the formation of stable thioether bonds with sulfhydryl groups (-SH) . The PEG modification enhances solubility and stability, while also reducing the immunogenicity of proteins and peptides.