Methyl 5-chloro-6-(3,4-dichlorophenyl)picolinate
Methyl 5-chloro-2-(2,3-dichlorophenyl)nicotinate
Methyl 3-chloro-2-(2,3-dichlorophenyl)isonicotinate
6-Chloro-5-(3,4-dichlorophenyl)picolinic acid
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