m-PEG-Succinimidyl Succinate (m-PEG-SS), MW 2K is an active ester poly PEG reagent, a linear NHS PEG (degradable PEG) with a cleavable linker, especially suitable for controlled release drug development applications.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.