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