InChI=1S/C27H20O21S/c28-3-7(30)17(33)23(48-49(43,44)45)8-2-4-10(27(42)46-8)11(19(35)21(37)15(4)31)12-14(25(39)40)13-9-5(1-6(29)16(32)18(9)34)26(41)47-24(13)22(38)20(12)36/h1-2,7,17,23,28-38H,3H2,(H,39,40)(H,43,44,45)