4-Amino-6-chloro-2-phenylpyridazin-3(2H)-one
3-Chloro-6-hydrazinylpyridazine
7-(Trifluoromethyl)-1H-pyrrolo[3,2-b]pyridine-3-carbaldehyde
6-Chloro-5-methylpyridazin-3(2H)-one
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