Amine PEG Acetic Acid(NH2-PEG-COOH), HCl Salt, MW 3.5K heterobifunctional amine PEG acetic acid product, with one amino group and one carboxyl group at each end of the molecular chain, it is a useful spacer with PEG crosslinking agent. Usually, it is available as HCl or TFA salt.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.