InChI=1S/C35H30O21S/c36-18-9-17(10-25-27(18)19(37)11-24(53-25)13-1-3-16(4-2-13)56-57(48,49)50)52-35-31(45)30(44)32(55-34(47)15-7-22(40)29(43)23(41)8-15)26(54-35)12-51-33(46)14-5-20(38)28(42)21(39)6-14/h1-10,24,26,30-32,35-36,38-45H,11-12H2,(H,48,49,50)