[{"from": "human", "value": "What can you tell me about this molecule? [C][O][C][=C][Branch1][P][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is an arenesulfonic acid that is guaiacol sulfated at position 4. Commonly used (in the form of its potassium salt) as an expectorant. It has a role as an expectorant. It is an arenesulfonic acid and a member of guaiacols. It is functionally related to a guaiacol. It is a conjugate acid of a 4-hydroxy-3-methoxybenzene-1-sulfonate."}]