2-[2-(3-Methoxy-phen-yl)-2-oxoeth-yl]-1,2-benzisothia-zol-3(2H)-one 1,1-dioxide.

In the title compound, C(16)H(13)NO(5)S, the benzothia-zole unit is essentially planar [maximum deviation = 0.0501 (10) Å for the S atom] and is oriented at a dihedral angle of 67.85 (5)° with respect to the meth-oxy-substituted benzene ring. The mean plane of the meth-oxy group is oriented at 14.3 (3)° with respect to the benzene ring to which it is attached. In the crystal structure, weak C-H⋯O hydrogen bonds form macrocyclic rings with R(2) (2)(10) and R(2) (2)(12) motifs.