4-methyl-3-phenyl-1,2,4-oxadiazole-5-thione

三甲基脲

3,4-diphenyl-1,2,4-oxadiazine-5-thione

4-甲基-3-苯基-4H-1,2,4-恶二嗪-5(6H)-硫酮

4-oxido-3,5-diphenyl-1,2,4-oxadiazol-4-ium