1,3,4-OXADIAZOLE-5-THIOL, 2-PHENYL- 1,3,4-Oxadiazole-2(3H)-thione, 5-phenyl- 2-Fenil-5-mercapto-1,3,4-ossadiazolo [Italian] 2-Phenyl-1,3,4-oxadiazole-5-thiol 23288-98-4 3004-42-0 5-Phenyl-1,3,4-oxadiazole-2(3H)-thione EINECS 221-103-9