User: I'm searching for the SMILES of a molecule that can be described as:
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.
Assistant: This is a molecule that fits your description: Nc1c(N=Nc2ccc([N+](=O)[O-])cc2)c(S(=O)(=O)O)cc2cc(S(=O)(=O)O)c(N=Nc3ccc(S(=O)(=O)O)cc3)c(O)c12
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-[(4-sulfophenyl)diazenyl]naphthalene-2,7-disulfonic acid
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.