4-Arm-PEG-Maleimide (MW 1000)

4-Arm-PEG-Maleimide (MW 1000) (4-Arm-PEG-Mal (MW 1000) ) is a maleimide-modified PEG derivative that forms stable thioether bonds with sulfhydryl groups (-SH) . The PEG modification enhances solubility and stability while reducing the immunogenicity of proteins and peptides.