(2020/05/05)
(2017/05/06)
2-(diethoxyphosphonyl)-4-nitrophenyl 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)-ethanesulfonate
4-chloro-2-(diethoxyphosphonyl)phenyl 1,1,2,2-tetra-fluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulfonate
2-(diethoxyphosphonyl)phenyl 1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoroethoxy)ethanesulfonate
5β,19-Cycloandrost-1-ene-3,17-dione
3,17-Dioxo-6β,19-cyclo-androst-4-en