5-Chloro-6-(3,4-dichlorophenyl)nicotinic acid
3-Chloro-5-(3,4-dichlorophenyl)-2-methoxypyridine
2,4-Dichloro-3-(2,6-dichlorophenyl)pyridine
2-Chloro-3-(2,6-dichlorophenyl)-6-methoxypyridine
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