The asymmetric unit of the title compound, C18H18N2O2, consists of two independent molecules differing primarily in the orientation of the propyl substituent. One of the propyl groups is disordered over two positions with an occupancy ratio of 0.859 (2):0.141 (2). The two independent molecules are associated through a C—H...π(ring) interaction and sheets parallel to (011) are formed from further sets of C—H...π(ring) interactions. The sheets are connected via inversion-related N—H...O hydrogen bonds.
