4arm PEG Amine, HCl Salt, MW 5K is a 4-arm PEG amine derivative, the hydrochloride salt provides stability to the 4-arm amine PEG in solid form. Reacts with active esters such as NHS, TFP and PFP.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.