[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][C][C][N][Branch1][C][C][N][=O]"}, {"from": "gpt", "value": "The molecule is a nitrosamine that has methyl and pentyl substituents. It is a potent oesophageal carcinogen. It has a role as a carcinogenic agent."}]