The structure of the title compound, C15H22N2O3, was determined and th
e C-CH=N+(O-)C nitrone system shown to be planar. The configuration of
the nitrone is confirmed to be Z. The molecular packing involves an i
ntermolecular hydrogen bond of 2.915(3) Angstrom between the N atom of
the carbonylamino group and the O atom of the N-oxide group.