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