InChI=1S/C26H26O12/c1-25(2)22-19(36-22)14-12(38-25)6-4-10-18(14)33-8-26(32)11-5-3-9(7-13(11)35-21(10)26)34-24-17(29)15(27)16(28)20(37-24)23(30)31/h3-7,15-17,19-22,24,27-29,32H,8H2,1-2H3,(H,30,31)