title: 3,7-Dichloro-quinoline-8-carboxylic acid.
abstract: THE TITLE COMPOUND (TRADE NAME: quinclorac), C(10)H(5)Cl(2)NO(2), was crystallized from a dimethyl sulfoxide solution. Quinclorac mol-ecules are packed mainly via π-π stacking inter-actions between neighbouring heterocycles (interplanar distance: 3.31 Å) and via O-H⋯N hydrogen bonding.
authors.affiliation: Huaiyin Teachers College, 111 West Changjiang Road, Huaian 223300, Jiangsu, People's Republic of China.
authors.forename: Xin-Hong
authors.initials: XH
authors.lastname: Guo