Product Description
4-Arm PEG-succinic acid (4-arm PEG-SA) is a multiarm PEG derivative with carboxylic acid groups at each terminal of the 4 arms connected to one pentaerythritol core. There is a C2 hydrocarbon ester linkage between PEG and the succinic acid COOH group. PEG acid can be used to react with amine groups with peptide coupling reagents such as NHS and DCC, EDC.
