[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][O][C][=C][Branch1][P][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O-1][O].[K+1]"}, {"from": "gpt", "value": "The molecule is an aromatic sulfonic acid. Potassium guaiacolsulfonate salt is an expectorant that thins the mucus in the lungs and reduces chest congestion."}]