6-methoxy-1-methylpyrimidine-2,4-dione

1-(4-chlorophenyl)-N-[4-[(4-chlorophenyl)methylideneamino]phenyl]methanimine

5-[[4-(二甲基氨基)苯基]亚甲基]巴比妥酸

5-异丙基-5-苄基巴比妥酸

2,4,5,6-四氯嘧啶