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