1-(2-Pyridyl)butane-1,3-dione
5-(Difluoromethyl)-4-methoxy-2-nitropyridine-3-sulfonyl chloride
4-(Difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine-3-sulfonyl chloride
5-Nitro-3-(trifluoromethyl)picolinic acid
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