Azido-PEG35 amine contains an azide and an amine group. The azide group can undergo Click Chemistry reactions with alkynes, DBCO and BCN and the amine group readily react with carboxylic acids, activated NHS esters to form amide bonds and other carbonyl compounds to form C-N bond through reductive amination. PEG spacer increase the water solubility of the compound.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.