title: (3,5-Dimethyl-phen-yl)[8-(3,5-dimethyl-benzo-yl)-2,7-dimeth-oxy-naphthalen-1-yl]methanone.
abstract: In the title mol-ecule, C(30)H(28)O(4), the inter-planar angle between the two benzene rings of the 3,5-dimethyl-benzoyl groups is 50.35 (7)°. The dihedral angles between the two benzene rings and the naphthalene ring system are 81.87 (6) and 83.55 (6)°. In addition, the conformations of the pairs of methyl groups and their counterparts differ from each other though their environment is very similar. In the crystal, weak C-H⋯O inter-actions occur.
authors.affiliation: Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture & Technology, 2-24-16 Naka-machi, Koganei, Tokyo 184-8588,  Japan.
authors.forename: Toyokazu
authors.initials: T
authors.lastname: Muto
authors.forename: Kosuke
authors.initials: K
authors.lastname: Sasagawa
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