6-(Trifluoromethyl)pyridazin-3(2H)-one
6-(Thiophen-2-yl)pyridazin-3(2H)-one
6-Cyclopropylpyridazin-3(2H)-one
6-(Furan-2-yl)pyridazin-3(2H)-one
Pyridazin-4(1H)-one
7-bromo-3H,4H-pyrido[3,4-d]pyridazin-4-one
6-Acetylpyridazin-3(2H)-one
