4-Arm PEG-Epoxide (4-Arm PEG-EPO), MW 10K is a multi-armed PEG derivative with an epoxide or epoxy on all four arms of the pentaerythritol core. Epoxides react with amines and hydroxyl groups under alkaline conditions.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.