Product Description
4-arm PEG succinimidyl succinate聽ester (4-arm PEG-SS) is a multiarm PEG derivative with succinimidyl NHS active ester groups at each terminal of the 4聽arms connected to onepentaerythritol core. PEG-SS (succinimidyl succinate聽ester) is one type of PEG-NHS reagents. There is a C2 hydrocarbon ester linkage between PEG and the NHS ester. NHS is a good leaving group which can react with amine-containing moities.
