The title compound, C14H12O2, has an essentially planar conformation with the two aromatic rings forming a dihedral angle of 5.23 (9)° and the aldehyde group lying in the plane of its aromatic group [maximum deviation = 0.204 (3) Å]. Weak intermolecular C—H⋯O contacts are found to be shortest between the aldehyde O-atom acceptor and the H atoms of the methylene group.
The title compound, C15H13NO3, crystallizes with three independent molecules per asymmetric unit (Z′ = 3). One of these molecules is found to have a configuration with a greater twist between its two aromatic rings than the other two [compare 70.26 (13) and 72.31 (12)° with 84.22 (12)°]. There are also differences in the number and nature of the weak intermolecular C—H⋯O contacts formed by each of the three molecules.
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