5 nitroso 4 5 6 7 tetrahydrothieno 3 2 c pyridine July 8, 2019 16 32 64 128 3 4 5 6-tetrahydro-2-pyrimidinethiol 4 6-dichloro-5-nitro-2-(propylthio)pyrimidine 3 6-di(pyridin-4-yl)-1 2 4 5-tetrazine
