InChI=1S/C22H22O12/c1-31-18-12(24)11-9(23)7-10(8-5-3-2-4-6-8)32-17(11)16(28)19(18)33-22-15(27)13(25)14(26)20(34-22)21(29)30/h2-6,10,13-15,20,22,24-28H,7H2,1H3,(H,29,30)