title: 7-Chloro-indoline-2,3-dione.
abstract: There are two mol-ecules in the asymmetric unit of the title compound, C(8)H(4)ClNO(2). In the crystal, they are linked by N-H⋯O hydrogen bonds, generating centrosymmetric, tetra-meric assemblies. A C-H⋯O inter-action also occurs.
authors.forename: Jie
authors.initials: J
authors.lastname: Sun
authors.forename: Zai-Sheng
authors.initials: ZS
authors.lastname: Cai