title: N'-(2-Hy-droxy-1,2-diphenyl-ethyl-idene)benzohydrazide.
abstract: In the title compound, C(21)H(18)N(2)O(2), the amino group is involved in an intra-molecular N-H⋯O hydrogen bond. The rings make dihedral angles of 37.9 (2), 64.4 (2) and 83.6 (2)°. In the crystal, inter-molecular O-H⋯N and O-H⋯O hydrogen bonds link the mol-ecules into chains running along [100].
authors.affiliation: College of Chemistry and Chemical Technology, Binzhou University, Binzhou 256600, Shandong, People's Republic of China.
authors.forename: Ming-Zhi
authors.initials: MZ
authors.lastname: Song