4arm PEG Succinimidyl Carboxymethyl Ester (4-Arm PEG-SCM), MW 10K is a multi-arm PEG derivative with succinimidyl ester at the end of the four arms, succinimidyl ester, which can quickly react with primary amine, PEG The number of oxirane units in the chain may not be equal for all arms.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
