InChI=1S/C27H20O21S/c28-8-3-7-19(17(34)14(8)31)45-20-10(30)2-5-12(16(20)33)13-6(1-9(29)15(32)22(13)47-25(5)37)26(38)46-21-11(4-43-24(7)36)44-27(39)18(35)23(21)48-49(40,41)42/h1-3,11,18,21,23,27-35,39H,4H2,(H,40,41,42)