[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=Branch2][Ring1][=N][=C][C][=C][Ring1][=Branch1][N][=N][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][S][=Branch1][C][=O][=Branch1][C][=O][O][S][=Branch1][C][=O][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a member of the class of azobenzenes that is azobenzene in which one of the phenyl groups is substituted at the para position by a sulfo group, while the other is substituted at a meta position by a sulfo group and at the para position by an amino group. The disodium salt is the biological stain 'fast yellow'. It is a member of azobenzenes, an amino sulfonic acid and a primary arylamine. It is a conjugate acid of a 4-aminoazobenzene-3,4'-disulfonate."}]