title: 4-[3,5-Bis(2-hy-droxy-phen-yl)-1H-1,2,4-triazol-1-yl]benzoic acid dimethyl-formamide monosolvate.
abstract: In the mol-ecule of deferasirox dimethyl-formamide solvate, C(21)H(15)N(3)O(4)·C(3)H(7)NO, the central 1,2,4-triazole ring is tilted with respect to the benzoic acid and one of the 2-hy-droxy-phenyl units but coplanar with the other 2-hy-droxy-phenyl group, as indicated by the dihedral angles of 33.69 (9), 72.57 (8) and 5.18 (9)°, respectively. Intra-molecular O-H⋯N hydrogen bonds generate an S(6) ring motif. In the crystal, deferasirox mol-ecules are linked by O-H⋯N hydrogen bonds and weak C-H⋯O inter-actions into chains along the c axis. The dimethyl-formamide solvent mol-ecules are located between the deferasirox chains and are linked to the deferasirox mol-ecules by O-H⋯O hydrogen bonds and weak C-H⋯O inter-actions.
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Suchada
authors.initials: S
authors.lastname: Chantrapromma
authors.forename: A S
authors.initials: AS
authors.lastname: Dayananda
authors.forename: H S
authors.initials: HS
authors.lastname: Yathirajan
authors.forename: Saji
authors.initials: S
authors.lastname: Thomas