User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is a 2-oxo monocarboxylic acid anion. It derives from a pent-4-enoate. It is a conjugate base of a 2-oxopent-4-enoic acid. It is a tautomer of a 2-hydroxypenta-2,4-dienoate.
Assistant: This is a molecule that fits your description: C=CCC(=O)C(=O)[O-]
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#}
2-oxopent-4-enoate
The molecule is a 2-oxo monocarboxylic acid anion. It derives from a pent-4-enoate. It is a conjugate base of a 2-oxopent-4-enoic acid. It is a tautomer of a 2-hydroxypenta-2,4-dienoate.