Fmoc-PEG-Maleimide (MW 1000) (Fmoc-NH-PEG-Mal (MW 1000)) is a PEG derivative that features an Fmoc protecting group and a maleimide reactive group. The Fmoc group is commonly used to shield amines from unwanted reactions until specific coupling is required. Maleimide forms stable thioether bonds with sulfhydryl (-SH) groups. PEG modification enhances solubility and stability while reducing the immunogenicity of proteins and peptides.
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