Bis-propargyl-PEG4 linker contains two propargyl groups. It can under sequential copper catalyzed azide-alkyne Click Chemistry to link to biomolecules of interest via two stable triazole linkages. The propargyl groups can be reacted with azide-bearing compounds or biomolecules viaThe increasing aqueous solubility derived from the PEG spacer makes it an ideal conjugation linker for biological applications.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.