InChI=1S/C33H28O20S/c34-15-4-1-12(2-5-15)33(46)52-31-29(24-19(38)10-18(37)23(28(24)44)25(41)13-3-6-16(35)17(36)7-13)51-22(27(43)30(31)53-54(47,48)49)11-50-32(45)14-8-20(39)26(42)21(40)9-14/h1-10,22,27,29-31,34-40,42-44H,11H2,(H,47,48,49)