5-[(2-nitrophenyl)methylidene]-1,3-diazinane-2,4,6-trione

5,5-二苄基巴比妥酸

5-苄基巴比妥酸

5-[[4-[(2,4,6-trioxo-1,3-diazinan-5-ylidene)methyl]phenyl]methylidene]-1,3-diazinane-2,4,6-trione

5-丙-2-烯基-1,3-二嗪农-2,4,6-三酮