title: 3-Hy-droxy-2-(4-hy-droxy-phen-yl)-4H-chromen-4-one.
abstract: In the title compound, C(15)H(10)O(4), the benzene ring is twisted at an angle of 20.7 (1)° relative to the 4H-chromene skeleton. In the crystal, adjacent mol-ecules are linked via a network of O-H⋯O and C-H⋯O hydrogen bonds. The mean planes of adjacent 4H-chromene moieties are parallel or oriented at an angle of 20.9 (1)° in the crystal structure.
authors.forename: Michał
authors.initials: M
authors.lastname: Wera
authors.forename: Vasyl G
authors.initials: VG
authors.lastname: Pivovarenko
authors.forename: Jerzy
authors.initials: J
authors.lastname: Błażejowski