Task: Please create a description for a molecule.
Molecule SMILES: O=S(=O)(O)c1ccc(N=Nc2ccc(N=Nc3c(O)c(S(=O)(=O)O)cc4cc(S(=O)(=O)O)ccc34)c(S(=O)(=O)O)c2)cc1
Constraint: Answer the question with full sentences.
Result: The molecule is an arenesulfonic acid that is 3-hydroxynaphthalene-2,7-disulfonic acid carrying a {2-sulfo-4-[(4-sulfophenyl)diazenyl]phenyl}diazenyl group at position 4. The tetrasodium salt is the biological stain 'Ponceau S'. It has a role as a histological dye and a fluorochrome. It is an arenesulfonic acid, a member of azobenzenes, a bis(azo) compound and a member of naphthols. It is a conjugate acid of a Ponceau S(4-).
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
3-hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)diazenyl]phenyl]diazenyl]naphthalene-2,7-disulfonic acid
The molecule is an arenesulfonic acid that is 3-hydroxynaphthalene-2,7-disulfonic acid carrying a {2-sulfo-4-[(4-sulfophenyl)diazenyl]phenyl}diazenyl group at position 4. The tetrasodium salt is the biological stain 'Ponceau S'. It has a role as a histological dye and a fluorochrome. It is an arenesulfonic acid, a member of azobenzenes, a bis(azo) compound and a member of naphthols. It is a conjugate acid of a Ponceau S(4-).