title: 4,8-Dimethyl-pyrano[2,3-a]carbazol-2(11H)-one.
abstract: The mol-ecule of the title compound, C(17)H(13)NO(2), is nearly planar, the r.m.s. deviation for all non-H atoms excluding the two methyl C atoms being 0.089 Å. Inter-molecular N-H⋯O and C-H⋯O hydrogen bonds are found in the crystal structure. C-H⋯π inter-actions are also found. The H atoms of the methyl group attached to the benzene ring are disordered equally over two positions.
authors.forename: M
authors.initials: M
authors.lastname: Sridharan
authors.forename: K J
authors.initials: KJ
authors.lastname: Rajendra Prasad
authors.forename: A
authors.initials: A
authors.lastname: Thomas Gunaseelan
authors.forename: A
authors.initials: A
authors.lastname: Thiruvalluvar
authors.forename: R J
authors.initials: RJ
authors.lastname: Butcher