InChI=1S/C56H40O12S/c57-38-19-17-34(18-20-38)56-52(45-28-42(61)30-48-53(45)51(37-24-39(58)27-40(59)25-37)55(67-48)33-10-5-2-6-11-33)44-22-31(15-21-46(44)65-56)14-16-36-23-41(60)29-47-49(36)50(54(66-47)32-8-3-1-4-9-32)35-12-7-13-43(26-35)68-69(62,63)64/h1-30,50-51,54-55,57-61H,(H,62,63,64)/b16-14+