title: 4-Methyl-N-[(2-oxo-1,3-thia-zolidin-3-yl)carbon-yl]benzene-sulfonamide.
abstract: The asymmetric unit of the title compound, C(11)H(12)N(2)O(4)S(2), contains two independent mol-ecules with similar dihedral angles of 76.7 (1) and 77.3 (1)° between the mean planes of the five- and six-membered rings. In both mol-ecules, the amino groups are involved in intra-molecular N-H⋯O hydrogen bonds. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link mol-ecules into ribbons extended along the a axis.
authors.affiliation: Zhejiang University of Technology, College of Chemical Engeering and Material Science, Hangzhou, Zhejiang 310014, People's Republic of China.
authors.forename: Qing-Wu
authors.initials: QW
authors.lastname: Chen
authors.forename: Jian-Quan
authors.initials: JQ
authors.lastname: Weng
authors.forename: Cheng-Xia
authors.initials: CX
authors.lastname: Tan
authors.forename: De-Long
authors.initials: DL
authors.lastname: Shen