4arm PEG Azide, MW 2K is a PEG hydrogel that can be cross-linked. Due to the increased number of reactive end groups, it has a larger molecular weight, so it can carry more drug molecules. PEG azide can be used for PEGylation by click chemistry. Azide PEG reacts with alkynes or acetylenes in copper-catalyzed click chemistry.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.