t-Boc-Aminooxy-PEG3-t-butyl ester CAS:1807512-44-2 has been used to conjugate with carbonyl bearing (ketone and aldehyde) biomolecules to form oxime for reversible linkage spacer.Oxime ligation is one of the hot topics in the field of bioconjugation of molecules due to its chemoselectivity and hydrolytic stability.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.