[{"from": "human", "value": "Provide a description of this molecule. [C][=C][N][=C][Branch1][Branch1][N][=C][Ring1][=Branch1][N][S][=Branch1][C][=O][=Branch1][C][=O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][=O]"}, {"from": "gpt", "value": "The molecule is a pyrimidine having a 4-nitrosobenzenesulfonamido group at the 2-position. It has a role as a drug metabolite and an allergen. It is a sulfonamide, a member of pyrimidines and a nitroso compound. It is functionally related to a sulfanilamide."}]