7-Methyl-5-[(4-methyl­benzene)­sulfon­yl]-2H,5H-[1,3]dioxolo[4,5-f]indole: crystal structure and Hirshfeld analysis

In the title indole derivative, C(17)H(15)NO(4)S, the fused dioxolo-indole system is essentially planar [r.m.s. deviation of the 12 fitted atoms = 0.0249 Å] and is effectively perpendicular to the appended 4-tolyl ring, forming a dihedral angle of 89.95 (6)°. Overall, the mol­ecule has the shape of the letter L. In the crystal, supra­molecular layers in the ab plane are formed via weak 4-tolyl-C—H⋯π(C(6)-ring of indole) and S—O⋯π(1,3-dioxole) contacts. The aforementioned inter­actions along with inter­atomic H⋯H and H⋯O contacts are all shown to make significant contributions to the calculated Hirshfeld surfaces.