title: 3-Hy-droxy-2-(4-meth-oxy-phen-yl)-4H-chromen-4-one.
abstract: In the title compound, C(16)H(12)O(4), the benzene ring is twisted at an angle of 12.3 (1)° relative to the 4H-chromene skeleton, and an intramolecular O-H⋯O hydrogen bond occurs. The meth-oxy group is almost coplanar with the benzene ring [1.5 (1)°]. In the crystal, inversely oriented mol-ecules are arranged in double (A, A') columns, along the b axis, and are linked by a network of inter-molecular O-H⋯O hydrogen bonds (between A and A') and C-H⋯π contacts (within A or A'). The 4H-chromene cores are parallel within A or A', but make a dihedral angle of 88.6 (1)° between A and A'.
authors.forename: Michał
authors.initials: M
authors.lastname: Wera
authors.forename: Ilia E
authors.initials: IE
authors.lastname: Serdiuk
authors.forename: Alexander D
authors.initials: AD
authors.lastname: Roshal
authors.forename: Jerzy
authors.initials: J
authors.lastname: Błażejowski