The title compound, C(12)H(12)N(2)S(2)O(2), consists of a benzothia-zole group and a oxazolidin-1-one linked via a flexible ethane-1,2-diyl spacer. The benzothiazole group and the oxazolidine ring are each almost planar [with maximum deviations of 0.007 (2) and 0.044 (3) Å, respectively] and make a dihedral angle of 9.35 (10)°. In the crystal structure, adjacent mol-ecules were connected through C-H⋯O and C-H⋯N hydrogen bonds, and further extended into a three-dimensional network structure through inter-molecular aromatic π-π stacking inter-actions in which the centroid-centroid distance is 3.590 (1) Å.