title: N-(4-Chloro-3-nitro-phen-yl)succinamic acid.
abstract: In the title compound, C(10)H(9)ClN(2)O(5), the nitro group is significantly twisted out of the plane of the benzene ring to which it is attached [dihedral angle = 27.4 (6)°]. In the crystal, mol-ecules are linked into centrosymmetric dimers via pairs of O-H⋯O hydrogen bonds. These dimers are further linked by N-H⋯O hydrogen bonds into double chains running along the a axis.
authors.forename: U
authors.initials: U
authors.lastname: Chaithanya
authors.forename: Sabine
authors.initials: S
authors.lastname: Foro
authors.forename: B Thimme
authors.initials: BT
authors.lastname: Gowda