Wang Ke, Li Yue-Jiao, Zhang Ting-Ting, Liang Hong-Ze
State Key Laboratory Base of Novel Functional Materials, and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2009 Jun 13;65(Pt 7):o1577. doi: 10.1107/S1600536809021369.
In the title compound, C(20)H(20)N(4)O(4), the complete molecule is generated by a crystallographic centre of symmetry. The conformation is stabilized by two intramolecular C-H⋯N links.