SAS-PEG-SAS (PEG-bis-Succinimidyl Amido Succinate), MW 3.4K This compound is capable of crosslinking with two amine molecules while maintaining water solubility and flexibility. It is a kind of NHS-PEG-NHS ester reagent.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.