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