(Z)-4-Benzyl­idene-3-methyl­isoxazol-5(4H)-one

In the title compound C₁₁H₉NO₂, the phenyl and isoxazole rings are almost coplanar, making a dihedral angle of 1.14 (9)°. This planarity is also assisted by an intra­molecular C—H...O hydrogen bond between the phenyl ring and the carbonyl O atom. In the crystal, weak C—H...O inter­actions generate a layered structure parallel to the ac plane.