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