Biotin-PEG4-alkyne is a biotinylation reagent with extended PEG spacer and a terminal alkyne group. The alkyne group readily reacts with azide tagged biomolecules through Click Chemistry reaction.The hydrophilic PEG spacer can increase aqueous solubility of the biotinylated molecules and help minimize steric hindrance and provide extra flexibility with the binding to stravidin and avidin molecules.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
