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