Description
This molecular is a sulfhydryl and amine reactive heterofuncational PEG linker. The chemical bonds that formed through Maleimide-PEG4-NHS linker are very stable. The NHS ester reacts with amino groups at pH 7-9 to form stable amide bond. In addiction, the maleimide reacts with thiol groups at pH 6.5-7.5 to form stable thiol-ether bond. Maleimide-PEG4-NHS is a very useful linker for various biomolecule crosslinking applications (such as to make ADCs (antibody drug conjugates.))