InChI=1S/C56H40O12S/c57-38-19-15-33(16-20-38)54-50(35-8-4-10-40(59)25-35)49-37(26-41(60)29-47(49)66-54)14-12-31-13-23-46-44(24-31)52(56(65-46)32-6-2-1-3-7-32)45-28-42(61)30-48-53(45)51(55(67-48)34-17-21-39(58)22-18-34)36-9-5-11-43(27-36)68-69(62,63)64/h1-30,50-51,54-55,57-61H,(H,62,63,64)/b14-12+