Thiol-PEG-Amine, MW 1K is a linear heterobifunctional PEGylation reagent containing thiols and amines. Often used as a cross-linking agent or a spacer between two different chemical entities, eg for gold nanoparticle conjugation.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.