ABSTRACT In the title compound, C24H19NO4S, the benzocarbazole ring system is planar (r.m.s. deviation = 0.016 Å) and forms a dihedral angle of 78.54 (4)° with the sulfonyl-bound phenyl ring. Intramolecular C—H...O interactions are observed. A C(8) chain running along the b axis is formed via intermolecular C—H...O hydrogen bonds. The chains are linked via weak C—H... π interactions.