[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][C][=Branch2][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][N][=N][C][=C][Branch2][Branch1][C][C][=C][C][=C][Branch2][Ring2][Ring1][C][=Branch1][N][=C][Branch1][Branch2][C][Ring1][=Branch1][=C][Ring1][#Branch2][N][O][N][=N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][N+1][=Branch1][C][=O][O-1]"}, {"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 (p-sulfophenyl)azo groups, respectively. The trisodium salt is the histological dye 'naphthalene blue black CS'. It has a role as a fluorochrome and a histological dye. It is a C-nitro compound, an aminonaphthalenesulfonic acid, a bis(azo) compound, a member of naphthols and a member of azobenzenes. It is a conjugate acid of a 4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-[(4-sulfonatophenyl)diazenyl]naphthalene-2,7-disulfonate."}]