InChI=1S/C27H32O17S/c1-9-19(33)21(35)22(36)27(40-9)43-26-24(42-16(8-28)20(34)25(26)44-45(37,38)39)18-13(31)6-12(30)17-14(32)7-15(41-23(17)18)10-2-4-11(29)5-3-10/h2-6,9,15-16,19-22,24-31,33-36H,7-8H2,1H3,(H,37,38,39)