4,5-Dihydroxy-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylic acid
5-Hydroxy-2-(trifluoromethoxy)pyridine-4-acetic acid
3,6-Dihydroxy-2-(trifluoromethoxy)pyridine-5-carboxaldehyde
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