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