[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch2][Ring1][#Branch2][C][=C][Branch2][Ring1][Ring2][C][Ring1][=Branch1][=C][Branch1][=N][C][=C][Ring1][#Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a naphthalenesulfonic acid that is naphthalene-2,7-disulfonic acid substituted by hydroxy groups at positions 4 and 5. It has a role as an indicator. It is a naphthalenesulfonic acid and a member of naphthalenediols."}]