title: 5-Hydr-oxy-1-(3-hydr-oxy-2-naphtho-yl)-3,5-dimethyl-2-pyrazoline.
abstract: In the title mol-ecule, C(16)H(16)N(2)O(3), intra-molecular O-H⋯O hydrogen bonds influence the mol-ecular conformation. Inter-molecular O-H⋯O hydrogen bonds [O⋯O = 2.922 (2) Å] link the mol-ecules into centrosymmetric dimers. Weak inter-molecular C-H⋯O inter-actions assemble these dimers into layers parallel to the bc plane.
authors.forename: Yuting
authors.initials: Y
authors.lastname: Chen
authors.forename: Da-Cheng
authors.initials: DC
authors.lastname: Li
authors.forename: Yuehua
authors.initials: Y
authors.lastname: Zhu
authors.forename: Da-Qi
authors.initials: DQ
authors.lastname: Wang