3-哒嗪酮

碘苯

5-(1,2-diaza-1-phenylbutadien-4-ylidene)-2,2-dimethyl-1,3-dioxan-4,6-dione

6-Chloro-2-phenyl-3(2H)-pyridazinone

6-羟基-2-苯基-3-哒酮