4a-Methyl-2,3,4,4a-tetrahydro-1<i>H</i>-carbazole-6-sulfonamide

In the title mol-ecule, C(13)H(16)N(2)O(2)S, the nine non-H atoms comprising the indole residue are approximately coplanar (r.m.s. deviation = 0.031 Å). The partially saturated ring adopts a chair conformation. One amine H forms an inter-molecular N-H⋯O hydrogen bond to a sulfonamide O atom, while the other amine H form is connected to the indole N atom of an adjacent mol-ecule via an N-H⋯N hydrogen bond, resulting in a three-dimensional architecture.