Task: Please create a text description for a molecule.
SMILES: C=CC1=C(C)C(=O)N=C1/C=c1\[nH]/c(=C\c2[nH]c(C(=O)c3[nH]c(C=O)c(C=C)c3C)c(C)c2CCC(=O)[O-])c(CCC(=O)[O-])c1C
Constraint: Answer the question with full sentences.
Result: The molecule is a linear tetrapyrrole anion obtained by deprotonation of the two carboxy groups of mycobilin b; major species at pH 7.3. It is a dicarboxylic acid dianion and a linear tetrapyrrole anion. It is a conjugate base of a mycobilin b.
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#}
C=CC1=C(C)C(=O)N=C1/C=c1\[nH]/c(=C\c2[nH]c(C(=O)c3[nH]c(C=O)c(C=C)c3C)c(C)c2CCC(=O)[O-])c(CCC(=O)[O-])c1C
3-[(2Z,5Z)-2-[[3-(2-carboxylatoethyl)-5-(4-ethenyl-5-formyl-3-methyl-1H-pyrrole-2-carbonyl)-4-methyl-1H-pyrrol-2-yl]methylidene]-5-[(3-ethenyl-4-methyl-5-oxopyrrol-2-yl)methylidene]-4-methylpyrrol-3-yl]propanoate
The molecule is a linear tetrapyrrole anion obtained by deprotonation of the two carboxy groups of mycobilin b; major species at pH 7.3. It is a dicarboxylic acid dianion and a linear tetrapyrrole anion. It is a conjugate base of a mycobilin b.