title: (E)-4-(5-Hydr-oxy-2-methyl-benzyl-idene-amino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one.
abstract: The title compound, C(19)H(19)N(3)O(2), is a Schiff base compound derived from 4-amino-anti-pyrine and 5-hydr-oxy-2-methyl-benzaldehyde. The mol-ecule adopts a trans configuration about the central C=N bond. There is an intra-molecular O-H⋯N hydrogen bond. Futhermore, weak C-H⋯O hydrogen bonds lead to the formation of a chain developing parallel to the b axis.
authors.affiliation: Department of Chemistry, Lishui University, Lishui 323000, People's Republic of China.
authors.forename: Yun-Fa
authors.initials: YF
authors.lastname: Zheng
authors.forename: Ming-Hua
authors.initials: MH
authors.lastname: Yang