[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. An anionic surface-active agent used for its wetting properties in industry and used in medicine as an irritant and sclerosing agent for hemorrhoids and varicose veins."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O]"}]