4arm PEG Azide, MW 20K can be cross-linked into PEG hydrogels. It is a branched chain PEG. It has a larger molecular weight due to the increased number of reactive end groups, 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.
