m-PEG-Succinimidyl Carbonate (MPEG-SC), MW 12K is an amine-reactive and water-soluble PEG polymer for PEGylation. After reacting with the amine, it forms a stable urethane bond between the PEG and the amine-containing molecule.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.