InChI=1S/C22H22O12/c1-32-10-5-2-9(3-6-10)4-7-11(23)14-13(8-12(24)15(25)16(14)26)33-22-19(29)17(27)18(28)20(34-22)21(30)31/h2-8,17-20,22,24-29H,1H3,(H,30,31)