title: Methyl 3',4',5'-trimeth-oxy-biphenyl-4-carboxyl-ate.
abstract: In the title compound, C17H18O5, the dihedral angle between the benzene rings is 31.23 (16)°. In the crystal, the mol-ecules are packed in an anti-parallel fashion in layers along the a axis. In each layer, very weak C-H⋯O hydrogen bonds occur between the meth-oxy and methyl ester groups. Weak C-H⋯π inter-actions between the 4'- and 5'-meth-oxy groups and neighbouring benzene rings [meth-oxy-C-ring centroid distances = 4.075 and 3.486 Å, respectively] connect the layers.
authors.affiliation: University of Jyväskylä, Department of Chemistry, PO Box 35, FI-40014 JY, Finland.
authors.forename: Manu
authors.initials: M
authors.lastname: Lahtinen
authors.forename: Kalle
authors.initials: K
authors.lastname: Nättinen
authors.forename: Sami
authors.initials: S
authors.lastname: Nummelin