title: (E)-1-Phenyl-butan-2-one (2,4-dinitro-phen-yl)hydrazone.
abstract: In the title compound, C(16)H(16)N(4)O(4), the dihedral angle between the aromatic rings is 79.04 (8)° and an intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, weak C-H.·O and C-H..π inter-actions link the mol-ecules, forming sheets.
authors.forename: Carlos F R A C
authors.initials: CF
authors.lastname: Lima
authors.forename: Ligia R
authors.initials: LR
authors.lastname: Gomes
authors.forename: Luís M N B F
authors.initials: LM
authors.lastname: Santos
authors.forename: José E
authors.initials: JE
authors.lastname: Rodriguez-Borges
authors.forename: John Nicolson
authors.initials: JN
authors.lastname: Low