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