bis-PEG23-endo-BCN PEG linker undergoes sequential copper free click chemistry to link two biomolecules. The hydrophilic PEG spacer increase solubility in aqueous media so as to compensate the loss from the increase of lypophilicity of the BCN.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.