DBCO-NH-PEG12-Biotin is a biotinylated reagent useful for introducing a biotin moiety to azide containing proteins and cell surfaces via copper-free Click Chemistry. This biotin compound is membrane-impermeable due to its negatively charged and water soluble sulfonate group.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.