InChI=1S/C27H22O22S/c28-5-12-18-20(49-50(41,42)43)21(25(44-12)47-22(35)6-1-9(29)16(33)10(30)2-6)46-24(37)8-4-13(32)27(40)26(38,39)15(8)14-7(23(36)45-18)3-11(31)17(34)19(14)48-27/h1-4,12,15,18,20-21,25,28-31,33-34,38-40H,5H2,(H,41,42,43)