3-Hydroxy-4-(3-hydroxyphenyl)-2-quinolone monohydrate

Abstract

In the title compound, also known as viridicatol monohydrate, C15H11NO3·H2O, the dihedral angle between the benzene ring and quinoline ring system is 64.76 (5)°. An intramolecular O—H...O hydrogen bond occurs. The crystal structure is stabilized by classical intermolecular N—H...O and O—H...O hydrogen bonds and weak π–π interactions with a centroid–centroid distance of 3.8158 (10) Å.