[{"from": "human", "value": "Provide a description of this molecule. [C][C][N][Branch1][Ring1][C][C][N][=O]"}, {"from": "gpt", "value": "The molecule is a nitrosamine that is N-ethylethanamine substituted by a nitroso group at the N-atom. It has a role as a mutagen, a hepatotoxic agent and a carcinogenic agent."}]