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