[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a sulfonamide that is benzenesulfonamide bearing a nitroso substituent at position 4. It has a role as a hapten and an allergen. It is a nitroso compound and a sulfonamide."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][Branch2][=C][C][=C][Ring1][=Branch1][N][=O][S][=Branch1][C][=O][=Branch1][C][=O][N]"}]