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Key indicators: single-crystal X-ray study; T = 295 K; mean (C-C) = 0.003 Å; R factor = 0.047; wR factor = 0.128; data-to-parameter ratio = 18.9. organic compounds o3536 # 2007 International Union of Crystallography

The title compound, C25H19N3O2, crystallizes as discrete mol­ecules which are well ordered through one intra­molecular N—H⋯O hydrogen bond. Structural analysis indicates that the mol­ecules exist as the amine–one form.