2′-Acetonaphthone

In the structure of the title compound [systematic name: 1-(naphthalen-2-yl)ethanone], C₁₂H₁₀O, the acetyl group is approximately coplanar with the naphthalene ring with a C_ar—C_ar—C=O torsion angle of 5.8 (2)°. In the crystal, the mol­ecules are packed in a classic herringbone arrangement typical for aromatic polycycles such as penta­cene. They are also linked by weak end-to-end C—H...O interactions along the ac diagonal.