Acta Cryst. (2012). E68, o3403 [ doi:10.1107/S1600536812046715 ]
Abstract: In the title molecule, C21H18O4, the C=C bond of the central enone group adopts a trans conformation. The dihedral angle formed by the naphthalene ring system and the benzene ring is 2.97 (11)°. The hydroxy group is involved in an intramolecular O-HO hydrogen bond. In the crystal, weak C-HO hydrogen bonds link the molecules into chains along .
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