3‐Acetylamino‐1,4‐benzoquinone 4‐Oxime

In the title compound, C 8 H 8 N 2 O 3 , the ring system conforms to an almost planar configuration. The mean values of the two short and four long C-C bond distances in the six-membered ring are 1.339(8) and 1.450(8) A, respectively. In the oxime group, the bond dimensions are C-N 1.301(7), N-O 1.361(6) and C-N-O 112.5 (4)°. The quinonic C=O bond distance is 1.234 (7) A, which is similar to the C=O bond length [1.222(7)A] of the amide group. The crystal structure is stabilized by intermolecular hydrogen bonding.