Ethylene glycol bis(succinic acid) is a homobifunctional, cleavable cross-linking reagent. It is mainly coupled to molecules containing primary amines by amide bonds buffered at pH 7.5 (6.5-8.5). The linkage provides a 12-atom spacer.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.