title: (E)-1-(4-Decyl-oxyphen-yl)-3-(2-hy-droxy-phen-yl)prop-2-en-1-one.
abstract: In the title compound, C(25)H(32)O(3), the enone group adopts an s-cis conformation. The alk-oxy chain is in an all-trans conformation. The dihedral angle between the benzene rings is 7.86 (5)°. In the crystal, mol-ecules are connected by pairs of O-H⋯O hydrogen bonds, forming inversion dimers and giving R(2) (2)(10) rings. Within these dimers, weak C-H⋯O hydrogen bonds form two R(2) (2)(7) rings. In the crystal, the approximately planar mol-ecules [largest deviation for an atom being 0.4737 (12) Å for the terminal C atom of the alk-oxy chain] are arranged in sheets parallel to (20-1). Weak C-H⋯π inter-actions are also observed.
authors.affiliation: Department of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak,  Malaysia.
authors.forename: Zainab
authors.initials: Z
authors.lastname: Ngaini
authors.forename: Siti Muhaini Haris
authors.initials: SM
authors.lastname: Fadzillah
authors.forename: Hasnain
authors.initials: H
authors.lastname: Hussain
authors.forename: Ibrahim Abdul
authors.initials: IA
authors.lastname: Razak
authors.forename: Safra Izuani Jama
authors.initials: SI
authors.lastname: Asik