Norbornene-PEG12 Propargyl contains a norbornene and a propargyl end group. Norbornene readily reacts with azide and tetrazine and is usefulness for cell labeling with fluorophore and functional molecules. the propargyl group can be reacted with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The PEG spacer increase the solubility of the resulting complex in aqueous media.
AxisPharm offers 4000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.