InChI=1S/C22H24O12/c1-8(9-3-4-11(24)13(5-9)32-2)16(26)15-12(25)6-10(23)7-14(15)33-22-19(29)17(27)18(28)20(34-22)21(30)31/h3-8,17-20,22-25,27-29H,1-2H3,(H,30,31)