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The title compound, C 10 H 9 F 3 N 2 O 2 , was prepared by the reaction of  m -phenyl­enediamine and ethyl 4,4,4-trifluoro­acetoacetate. In the crystal, inter­molecular C—H⋯ F, N—H⋯F, O—H⋯N and N—H⋯O inter­actions contribute to the crystal packing.

7-Amino-4-hydroxy-4-trifluoromethyl-3,4-dihydroquinolin-2(1H)-one