title: 6-Methyl-4-oxo-4H-chromene-3-carbaldehyde.
abstract: In the title compound, C(11)H(8)O(3), the benzopyran-4-one or chromone ring system is almost planar, with a maximum deviation of 0.045 (2) Å. The crystal structure is stablized by π-π inter-actions between the benzene and pyran rings of inversion-related mol-ecules stacked along the b axis, with a centroid-centroid distance of 3.5463 (12) Å
authors.affiliation: H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270,  Pakistan.
authors.forename: Sammer
authors.initials: S
authors.lastname: Yousuf
authors.forename: Asma
authors.initials: A
authors.lastname: Mukhtar
authors.forename: Nida
authors.initials: N
authors.lastname: Ambreen
authors.forename: Syed Muhammad
authors.initials: SM
authors.lastname: Saad
authors.forename: Khalid M
authors.initials: KM
authors.lastname: Khan