Department of Applied Chemistry, Graduate School of Engineering, Kyushu, Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu 804-8550, Japan
Kozue Sakao
Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University, Korimoto 1-21-24, Kasoshima, 890-0065, Japan
De-Xing Hou
Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima University, Korimoto 1-21-24, Kasoshima, 890-0065, Japan
Kenji Yoza
Japan Bruker AXS K.K.3-9, Moriya-cho Kanagawaku Yokohama 221-0022, Japan
In the title compound, C25H20O12, commonly known as pentaacetylated quercetin, the benzene ring and one of its methoxy substituent groups is disordered (site occupancy ratio 0.523:0.427), with a dihedral angle between the major-disorder component and the benzene ring of the benzopyranone moiety of 10.8 (6)°. In the crystal, C—H...O hydrogen-bonding interactions give chains which extend along b.
