title: 4-(1H-Tetra-zol-5-yl)benzene-1,3-diol.
abstract: In the title compound, C7H6N4O2, rings are almost coplanar, the dihedral angle between them being 8.45 (13)°. An intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, the mol-ecules are linked by O-H⋯N and N-H⋯O hydrogen bonds into a three-dimensional network.
authors.affiliation: Department of Chemistry, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea.
authors.forename: Youngjo
authors.initials: Y
authors.lastname: Kim