The TCO-PEG5000-NHS ester is a heterobifunctional linker containing a TCO portion for inverse electron-demand Diels-Alder cycloaddition reactions and an NHS-activated ester.The TCO will react with the tetrazine via an inverse electron-demand Diels-Alder cycloaddition reaction to form a stabilized dihydropyridazinium bond. Extremely fast kinetics and selectivity enable the coupling of two low-abundance biopolymers in aqueous or other complex chemical environments. The excellent selectivity and biocompatibility of this bioorthogonal reaction allows complementary mates to react with each other in functionally rich biological systems, in some cases living organisms. Thus, tetrazine TCO linkages are used in fluorescence imaging, drug delivery, PET and SPECT imaging, and radionuclide therapy.
分子式
C24H38N2O10
分子量
514.56
CAS号
1621096-79-4
中文名称
TCO – PEG4– NHS Ester
运输条件
Room temperature in continental US; may vary elsewhere.