Iodoacetamido-PEG8-acid is a PEG reagent containing an Iodoacetamide group and a carboxlic acid moiety. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.