[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][Ring1][C][Cl][N][C][=Branch1][C][=O][N][Branch1][Ring2][C][C][Cl][N][=O]"}, {"from": "gpt", "value": "The molecule is a member of the class of N-nitrosoureas that is 1,3-bis(2-chloroethyl)urea in which one of the nitrogens is substituted by a nitroso group. It has a role as an alkylating agent and an antineoplastic agent. It is a member of N-nitrosoureas and an organochlorine compound."}]