TCO-PEG4-DBCO linker contains a TCO and a DBCO moiety. Due to the specific reactivity of TCO and DBCO, the linker can be utilized for controlled bioconjugations with tetrazine and azide bearing biomolecules. The PEG spacer can increase the aqueous solubility of the resulting biomolecule.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.