2-Chloro-6-(2,4-dichlorophenyl)isonicotinaldehyde
3-Chloro-2-(2,4-dichlorophenyl)isonicotinic acid
5-Chloro-2-(2,4-dichlorophenyl)nicotinaldehyde
5-Chloro-6-(2,4-dichlorophenyl)nicotinaldehyde
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