SG-PEG-SG (Succinimidyl Glutarate ester-PEG-Succinimidyl Glutarate ester), MW 2K is a linear homobifunctional PEG reagent with a C3 aliphatic ester bond between the PEG and the NHS ester.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.