InChI=1S/C21H24O12/c1-21(2,20(28)29)7-9-15-8(4-5-11(22)32-15)6-10(16(9)30-3)31-19-14(25)12(23)13(24)17(33-19)18(26)27/h4-6,12-14,17,19,23-25H,7H2,1-3H3,(H,26,27)(H,28,29)