3-氯-6-苯基哒嗪

3-苯基哒嗪

2,6-二苯基-3(2H-)-吡嗪酮

2-(2-氨基乙基)-6-苯基吡嗪-3(2H)-酮

1,1-diethyl-3-[3-(6-oxo-3-phenylpyridazin-1-yl)propyl]urea