title: (4Z)-4-[(Cyclo-propyl-amino)(phen-yl)methyl-ene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one.
abstract: In the title compound, C(20)H(19)N(3)O, the dihedral angles formed by the pyrazolone ring with the two phenyl rings are 64.27 (6) and 17.00 (6)°. The mol-ecular structure is stabilized by intra-molecular N-H⋯O and C-H⋯O hydrogen bonds. In the crystal, the mol-ecules are linked into chains along the b axis by inter-molecular C-H⋯O hydrogen bonds.
authors.forename: Hai-Zhen
authors.initials: HZ
authors.lastname: Xu
authors.forename: Yan-Xia
authors.initials: YX
authors.lastname: Yang
authors.forename: You-Quan
authors.initials: YQ
authors.lastname: Zhu