title: trans-3,3',4,5'-Tetra-meth-oxy-stilbene.
abstract: The title compound, C(18)H(20)O(4), was synthesized by a Wittig-Horner reaction of diethyl 3,4-dimeth-oxy-benzyl-phosphate and 3,5-dimeth-oxy-benzaldehyde. In the crystal, the dihedral angle between the two aromatic rings is 2.47 (12)°. All the meth-oxy groups are almost coplanar with the aromatic ring to which they are attached [C-C-O-C torsion angles = -2.8 (3), -5.2 (4), -176.3 (2) and -178.0 (2)°].
authors.affiliation: Department of Food Science and Engineering, Jinan University, Guangzhou 510632,  People's Republic of China.
authors.forename: Ri-An
authors.initials: RA
authors.lastname: Yan
authors.forename: Xiao-Xia
authors.initials: XX
authors.lastname: Li
authors.forename: Guo-Qiang
authors.initials: GQ
authors.lastname: Li
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