[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][N][P][=Branch1][C][=O][Branch1][Branch1][O][C][Ring1][#Branch1][N][Branch1][Ring2][C][C][Cl][C][C][Cl]"}, {"from": "gpt", "value": "The molecule is a phosphorodiamide that is 1,3,2-oxazaphosphinan-2-amine 2-oxide substituted by two 2-chloroethyl groups at the amino nitrogen atom. It has a role as a carcinogenic agent, an alkylating agent, an immunosuppressive agent, an antineoplastic agent, an antirheumatic drug, an environmental contaminant, a xenobiotic and a drug allergen. It is a phosphorodiamide, a nitrogen mustard and an organochlorine compound."}]