Task: Please create a text description for a molecule.
Molecule SMILES: O=C1C(c2[nH]c3ccc(S(=O)(=O)O)cc3c2O)=Nc2ccc(S(=O)(=O)O)cc21
Constraint: Answer the question with complete sentences.
Result: The molecule is a member of the class of indolones obtained by formal 2,2'-oxidative coupling of two molecules of 3-oxo-2,3-dihydroindole-5-sulfonic acids. It has a role as a food colouring and a histological dye. It is a member of indolones, an olefinic compound, an enone, an arenesulfonic acid and a ring assembly. It is a conjugate acid of an indigo carmine(2-).
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#}
O=C1C(c2[nH]c3ccc(S(=O)(=O)O)cc3c2O)=Nc2ccc(S(=O)(=O)O)cc21
2-(3-hydroxy-5-sulfo-1H-indol-2-yl)-3-oxoindole-5-sulfonic acid
The molecule is a member of the class of indolones obtained by formal 2,2'-oxidative coupling of two molecules of 3-oxo-2,3-dihydroindole-5-sulfonic acids. It has a role as a food colouring and a histological dye. It is a member of indolones, an olefinic compound, an enone, an arenesulfonic acid and a ring assembly. It is a conjugate acid of an indigo carmine(2-).