title: Dimethyl 4,4-diacetyl-hepta-nedioate.
abstract: The mol-ecule of the title dicarbonyl compound, C(13)H(20)O(6), possesses approximate local twofold symmetry. In the crystal, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules, generating a chain structure.
authors.forename: Ling-Hua
authors.initials: LH
authors.lastname: Zhuang
authors.forename: Guo-Wei
authors.initials: GW
authors.lastname: Wang