Azido-PEG2-sulfonic acid contains an azide group and a sulfonic acid group. The azide group undergoes Click Chemistry easily. Once bonded to polymer, the hydrophilic PEG spacer linked sulfonic acid can be used for solid support synthesis and hydrophilic suface modifications.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.