InChI=1S/C22H22O12/c1-30-9-3-8(12-6-11-13(33-12)7-14(31-2)16(24)15(11)23)4-10(5-9)32-22-19(27)17(25)18(26)20(34-22)21(28)29/h3-7,17-20,22-27H,1-2H3,(H,28,29)