674-82-8
双乙烯酮
+
74497-02-2
1-aminobenzene
→
87742-62-9
3-hydroxy-N-phenylbut-2-enamide
102-01-2
N-乙酰乙酰苯胺
124070-06-0
(1-anilino-1,3-dioxobutan-2-yl) acetate
22760-66-3
4-anilino-3-diazonio-4-oxobut-2-en-2-olate