3-Hydroxy-5-(perfluorophenyl)pyridine-2-acetic acid
2-Hydroxy-5-(perfluorophenyl)pyridine-4-acetic acid
2-Hydroxy-5-(perfluorophenyl)pyridine-3-acetic acid
2-Hydroxy-3-(perfluorophenyl)pyridine-6-acetic acid
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