In the crystal structure of the title compound, C(9)H(9)F(3)O(3)S, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules along the c-axis direction. Also present are slipped π-π stacking inter-actions between phenyl-ene rings, with perpendicular inter-planar distances of 3.55 (2) Å and centroid-centroid distances of 3.851 (2) Å.