title: [8-(4-But-oxy-benzo-yl)-2,7-dimeth-oxy-naphthalen-1-yl](4-but-oxy-phen-yl)methanone.
abstract: The mol-ecule of the title compound, C(34)H(36)O(6), is located on a twofold rotation axis. The two 4-but-oxy-benzoyl groups at the 1- and 8-positions of the naphthalene ring system are aligned almost anti-parallel. The dihedral angles between the benzene rings and the naphthalene ring system are 71.70 (4)°. In the crystal, the mol-ecules are connected via C-H⋯π inter-actions into a layer parallel to (010).
authors.affiliation: Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture & Technology, Koganei, Tokyo 184-8588,  Japan.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Sasagawa
authors.forename: Toyokazu
authors.initials: T
authors.lastname: Muto
authors.forename: Akiko
authors.initials: A
authors.lastname: Okamoto
authors.forename: Hideaki
authors.initials: H
authors.lastname: Oike
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Yonezawa