m-PEG-azide (mPEG-N3, Methoxy PEG Azide), MW 30K is a linear click chemistry PEG reagent containing azide at one end, which can inhibit the non-specific binding of charged molecules to the modified surface.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.