Synonyms: 5H-Tetranaphtho[2,3-a:2',3'-a':2'',3''-i:2''',3'''-i']pyrrolo[2,3-c:5,4-c']dicarbazole-5,7,12,17,22,24,29,31(6H)-octone,23,30-dihydro- (9CI); 6H-Tetranaphtho[2,3-a:2',3'-a':2'',3''-i:2''',3'''-i']pyrrolo[2,3-c:5,4-c']dicarbazole-5,7,12,17,22,24,29,31-octone,23,30-dihydro- (7CI)