Benzyl-PEG2-azide contains a benzyl group and azide group. While the azide reacts with alkynes, DBCO and BCN through Click Chemistry reactions, the benzyl groups can be removed under mild condition to form an alcohol for further derivatization. The hydrophilic PEG linker increases the solubility of the compound in aqueous media.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.