3-Amino-4-(p-N,N-dimethylamino)phenylmethyliden-2-pyrazolin-5-on

ethyl 3-nitro-3-(2-phenylhydrazineylidene)propanoate

N-(5-oxo-1-phenyl-4H-pyrazol-3-yl)acetamide

2-氰基乙酰苯胺