title: 4-(4-Chloro-benz-yl)-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one.
abstract: The five-membered ring of the title compound, C(17)H(15)ClN(2)O, is almost planar (r.m.s. deviation = 0.008 Å), and its phenyl subsitutent is aligned at 34.9 (1)° with respect to this ring. The angle at the methyl-ene C atom is opened to 116.4 (2)°. In the crystal, adjacent mol-ecules are linked by an N-H⋯O hydrogen bond, generating a linear chain along the a axis.
authors.forename: Shaaban K
authors.initials: SK
authors.lastname: Mohamed
authors.forename: Mahmoud A A
authors.initials: MA
authors.lastname: El-Remaily
authors.forename: Ahmed M
authors.initials: AM
authors.lastname: Soliman
authors.forename: Hossam
authors.initials: H
authors.lastname: Abdel-Ghany
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng