InChI=1S/C22H30O13/c1-31-8-2-3-10-4-6-11(7-5-10)32-21-17(28)15(26)18(12(9-23)33-21)34-22-16(27)13(24)14(25)19(35-22)20(29)30/h2-7,12-19,21-28H,8-9H2,1H3,(H,29,30)/b3-2+