title: 6-Chloro-1-methyl-indoline-2,3-dione.
abstract: The title mol-ecule, C(9)H(6)ClNO(2), is essentially planar: the maximum deviation from the mean plane of the indoline ring is 0.020 (2) Å and the substituents do not deviate by more than 0.053 (2) Å from this plane. C-H⋯O hydrogen bonds help to consolidate the crystal structure.
authors.affiliation: Sate Key Laboratory of Materials-Oriented Chemcial Engineering, College of Life Science and Pharmaceutical Engineering, Nanjing University of Technology, Xinmofan Road No. 5 Nanjing, Nanjing 210009,  People's Republic of China.
authors.forename: Hua Quan
authors.initials: HQ
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Tang
authors.forename: De Cai
authors.initials: de C
authors.lastname: Wang
authors.forename: Ping Kai
authors.initials: PK
authors.lastname: Ou-Yang