InChI=1S/C33H28O21S/c34-14-3-1-11(5-16(14)36)25(41)23-17(37)9-18(38)24(28(23)44)30-31(53-33(47)12-2-4-15(35)21(8-12)54-55(48,49)50)29(45)27(43)22(52-30)10-51-32(46)13-6-19(39)26(42)20(40)7-13/h1-9,22,27,29-31,34-40,42-45H,10H2,(H,48,49,50)