m-PEG3-ONHBoc contains a Boc protected aminooxy group. The Boc can be removed under acidic conditions to form a free aminooxy group, which is useful for aldehyde and ketone containing biomolecule labelling. The mPEG modificatioin increase the solubility of the resulting compound in aqueous media.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.