[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=C][C][=C][Ring1][#Branch1][C][=C][Branch1][Ring2][N][Ring1][Branch1][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][O]"}, {"from": "gpt", "value": "The molecule is a crystalline, carcinogenic aromatic hydrocarbon consisting of five fused rings and produced during the incomplete combustion of organic matter. 7H-Dibenzo[c,g]carbazole is primarily found in cigarette tar. This substance is used only for research purposes. 7H-Dibenzo[c,g]carbazole is reasonably anticipated to be a human carcinogen. (NCI05)"}]