InChI=1S/C28H30O17/c1-41-9-4-2-8(3-5-9)11-6-10(30)13-16(32)25(44-28-22(38)19(35)21(37)26(45-28)27(39)40)17(33)14(23(13)42-11)24-20(36)18(34)15(31)12(7-29)43-24/h2-6,12,15,18-22,24,26,28-29,31-38H,7H2,1H3,(H,39,40)