[{"from": "human", "value": "Describe this molecule. [C][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][N][C][=Branch1][C][=O][N][Branch1][Ring2][C][C][Cl][N][=O]"}, {"from": "gpt", "value": "The molecule is an N-nitrosourea that is urea in which one of the nitrogens is substituted by a 2-chloroethyl group and by a nitroso group, while the other nitrogen is substituted by a cyclohexyl group. An alkylating antineoplastic agent, it is used in the treatment of brain tumours, lung cancer, malignant melanoma and other solid tumours. It has a role as an alkylating agent and an antineoplastic agent. It is a member of N-nitrosoureas and an organochlorine compound."}]