In the title compound, C22H17NO3S, the sulfonyl-bound phenyl ring is almost orthogonal to the indole ring system, making a dihedral angle of 84.89 (7)°. The carbonyl-bound phenyl ring forms a dihedral angle of 57.32 (5)° with the indole ring system. The two phenyl rings are inclined at 52.68 (7)°. The S atom has a distorted tetrahedral configuration. In the crystal, weak C - H⋯O interactions link the molecules, forming a helical chain along the b-axis direction.
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M. Umadevi, Saravanan, V., Yamuna, R., Mohanakrishnanc, A. K., Chakkaravarthi, G., and Ishida, H., “Crystal structure of (2-methyl-1-phenylsulfonyl-1H-indol-3-yl)(phenyl)methanone”, Acta Crystallographica Section E: Structure Reports Online, vol. 71, pp. 133-135, 2015.