[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch2][Ring1][=Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][N][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is the arenesulfonate that is the dianion formed by proton loss from each of the sulfo groups in 2,2'-disulfoazobenzene; major microspecies at pH 7.3. It is a conjugate base of a 2,2'-disulfoazobenzene."}]