Ethyl 4,9-dimethyl-9H-carbazole-3-carboxylate

In the title compound, C₁₇H₁₇NO₂, the carbazole skeleton includes an ethoxycarbonyl group at the 3-position. The indole three-ring system is almost planar [maximum deviation = 0.065 (2) Å], and the ethyl ester group is inclined to its mean plane by 15.48 (2)°. In the crystal, there are π-π stacking interactions between parallel benzene rings and between parallel benzene and pyrrole rings of adjacent molecules [centroid-centroid distances = 3.9473 (8) and 3.7758 (8) Å, respectively]. Weak C - H⋯π interactions are also present.