The title compound, C(7)H(13)NO(3), adopts an approximately planar conformation. The torsion angles in the aliphatic chain between the carbonyl group C atoms range from 172.97 (14) to 179.38 (14)° and the r.m.s. deviation of all non-H atoms is 0.059 Å. The crystal packing is dominated by two strong N-H⋯O hydrogen bonds involving the amide groups and forming R(2) (2)(8) rings and C(4) chains. Ov...