Amine-PEG-amine (NH2-PEG-NH2), MW 35K is a polyethylene glycol derivative containing two primary amine groups per PEG molecule. These amine peg amines are readily soluble in water and all PEGylation reactions can be performed in aqueous buffers.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.