70210-15-0 N,N'-(5,6,12,17,18,24-hexahydro-5,12,17,24-tetraoxodinaphth[2,3-i:2',3'-i']indeno[4,3-ab:2,1-c']dicarbazole-11,23-diyl)bis(benzamide) 83721-62-4 8,25-DIHYDRO-5H-NAPHTH(2',3':6,7)INDOLO(2,3-C)DINAPHTHO(2,3-I:2',3'-I')BENZO(1,2-A:4,5-A')DICARBAZOLE-5,7,9,14,19,24,26,31(6H)-OCTONE