InChI=1S/C28H26O17/c29-10-5-12(30)11-7-18(23(42-17(11)6-10)8-1-13(31)19(35)14(32)2-8)43-27(41)9-3-15(33)24(16(34)4-9)44-28-22(38)20(36)21(37)25(45-28)26(39)40/h1-6,18,20-23,25,28-38H,7H2,(H,39,40)