FMOC-NH-PEG-CM, MW 3.4K is an Fmoc-protected PEGylation reagent with a carboxylic acid at the end. Carboxylic acids can react with primary amines under the action of activators to form stable amide bonds.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.