title: 2,4-Dimethoxy-benzaldehyde azine.
abstract: The title mol-ecule, C(18)H(20)N(2)O(4), is located on a crystallographic centre of symmetry. The meth-oxy groups are coplanar with the benzene ring [interplanar angles of 14.4 (2) and 3.1 (3)°], indicating a conjugation effect.
authors.forename: M A A A A
authors.initials: MA
authors.lastname: Islam
authors.forename: M T H
authors.initials: MT
authors.lastname: Tarafder
authors.forename: M A
authors.initials: MA
authors.lastname: Alam
authors.forename: N
authors.initials: N
authors.lastname: Guidolin
authors.forename: E
authors.initials: E
authors.lastname: Zangrando