Methoxy PEG Propionic Acid (m-PEG-PA), MW 20K is an amine PEGylation reagent, the key polyethylene glycol material for PEGylated drugs. Methoxy PEG Propionate is more stable than M-PEG-SCM.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.