5-Fluoro-2-hydroxy-3-(3,4,5-trichlorophenyl)pyridine
5-Fluoro-2-hydroxy-3-(2,4,6-trichlorophenyl)pyridine
5-Fluoro-2-hydroxy-3-(2,3,4-trichlorophenyl)pyridine
3-Fluoro-5-hydroxy-2-(3,4,5-trichlorophenyl)pyridine
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