title: 4-Hydr-oxy-3-meth-oxy-5-nitro-aceto-phenone (5-nitro-apocynin).
abstract: The title mol-ecule, C(9)H(9)NO(5), is close to planar (r.m.s. deviation from the mean plane of the non-H atoms = 0.058 Å). The OH group forms a bifurcated O-H⋯(O,O) hydrogen bond, with the intra-molecular component to a nitro O atom and the inter-molecular component to a keto O atom, the latter resulting in chains along [20]. A C-H⋯O inter-action reinforces the packing.
authors.forename: Sainath
authors.initials: S
authors.lastname: Babu
authors.forename: Achuthan C
authors.initials: AC
authors.lastname: Raghavamenon
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek
authors.forename: Rao M
authors.initials: RM
authors.lastname: Uppu