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