[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][=N][C][=C][Branch2][Branch1][#Branch1][C][=C][Branch2][Ring2][P][C][=Branch2][Ring1][N][=C][Branch1][P][C][=C][Ring1][=Branch1][C][=C][Ring1][#Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][N][=N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][N][O]"}, {"from": "gpt", "value": "The molecule is a bis(azo) compound that is naphthalene-2,7-disulfonic acid in which the hydrogens at positions 3, 4, 5, and 6 are replaced by (p-nitrophenyl)azo, amino, hydroxy, and phenylazo groups, respectively. A biological stain, it can be used interchangeably with its disodium salt, Amido Black 10B. It has a role as a histological dye. It is a bis(azo) compound, a C-nitro compound, a member of naphthols and an aminonaphthalenesulfonic acid. It is a conjugate acid of a 4-amino-5-hydroxy-3-[(p-nitrophenyl)azo]-6-(phenylazo)-naphthalene-2,7-disulfonate."}]