Amine-PEG-valeric Acid(NH2-PEG-VA, Amine-PEG-VA), MW 5K is a PEGylation reagent containing free amines and terminal carboxylic acids. The amine group reacts with the activated NHS ester. Valeric acid is a linear alkyl carboxylic acid mainly used in the synthesis of esters.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.