m-PEG-Propionaldehyde, MW 40K is an acetaldehyde PEGylation reagent. Propionaldehyde reacts with hydrazide to form a stable hydrazone bond, and propionaldehyde reacts with alkoxyamine to form a stable oxime bond.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.