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