3-Chloro-5-(2,3-difluorophenyl)isonicotinic acid
2-Chloro-6-(2,3-difluorophenyl)isonicotinic acid
2-Chloro-3-(2,3-difluorophenyl)isonicotinic acid
3,6-Bis(2,3-difluorophenyl)picolinic acid
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