Acta Cryst. (2012). E68, o2785
[ doi:10.1107/S1600536812036306 ]
Abstract: The title compound, C21H18N2O3, exists in the E conformation with respect to the azomethane C=N double bond. The central benzene ring is almost coplanar with one of the substituent benzene rings [dihedral angle = 1.74 (5)°] and is approximately orthogonal to the other benzene ring of the molecule [dihedral angle = 86.61 (7)°]. An intramolecular O-HN hydrogen bond occurs. The crystal packing is dominated by N-HO hydrogen bonds, which lead to an infinite chain running parallel to .
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