InChI=1S/C22H24O12/c1-29-12-7-11(32-16(23)8-12)5-4-10-6-14(30-2)15(31-3)9-13(10)33-22-19(26)17(24)18(25)20(34-22)21(27)28/h4-9,17-20,22,24-26H,1-3H3,(H,27,28)/b5-4+