title: 4-(5-Oxo-5H-1,2,4-dithia-zol-3-yl)phenyl 4-methyl-benzene-sulfonate.
abstract: In the mol-ecular structure of the title compound, C(15)H(11)NO(4)S(3), the 1,2,4-dithia-zolone and central benzene rings are approximately coplanar, making a dihedral angle of 3.08 (7)°. The central benzene ring and the 4-methyl-benzene ring subtend a dihedral angle of 57.47 (8)°. In the crystal, π-π stacking occurs between the central benzene ring and the 1,2,4-dithia-zolone ring of adjacent mol-ecules, which are aligned almost parallel, the centroid-centroid distance being 3.555 (7) Å.
authors.affiliation: State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041,  People's Republic of China.
authors.forename: Jian-Zhong
authors.initials: JZ
authors.lastname: Yang
authors.forename: Wei-Yi
authors.initials: WY
authors.lastname: Pi
authors.forename: You-Fu
authors.initials: YF
authors.lastname: Luo