2,2'-(carbonyldi-4,1-phenylene)bis(5-benzoyl-4,5,10,10a-tetrahydropyrrolo[3,4-b]carbazole-1,3(2H,3aH)-dione) InChI=1/C55H40N4O7/c60-49(31-19-23-35(24-20-31)56-52(63)41-27-39-37-15-7-9-17-45(37)58(47(39)29-43(41)54(56)65)50(61)33-11-3-1-4-12-33)32-21-25-36(26-22-32)57-53(64)42-28-40-38-16-8-10-18-46(38)59(48(40)30-44(42)55(57)66)51(62)34-13-5-2-6-14-34/h1-26,31 pyrrolo[3,4-b]carbazole-1,3(2H,3aH)-dione, 2,2'-(carbonyldi-4,1-phenylene)bis[5-benzoyl-4,5,10,10a-tetrahydro-