InChI=1S/C62H48O15/c63-38-21-36(22-39(64)26-38)50-49-35(25-43(30-48(49)76-57(50)32-10-4-1-5-11-32)73-62-56(70)54(68)55(69)60(77-62)61(71)72)18-16-31-17-19-46-44(20-31)52(59(74-46)34-14-8-3-9-15-34)45-28-42(67)29-47-53(45)51(37-23-40(65)27-41(66)24-37)58(75-47)33-12-6-2-7-13-33/h1-30,50-51,54-58,60,62-70H,(H,71,72)/b18-16+