InChI=1S/C30H26O14/c31-15-5-1-13(2-6-15)3-8-22(36)41-12-21-24(37)26(39)27(40)30(43-21)44-29-25(38)23-19(35)10-16(32)11-20(23)42-28(29)14-4-7-17(33)18(34)9-14/h1-11,21,24,26-27,30-35,37,39-40H,12H2/b8-3+