Task: Please create a description for a molecule based on its representation.
Molecule SMILES: O=C1C=C(CO)/C(=C\CO)O1
Constraint: Answer the question with full sentences.
Result: The molecule is a butenolide that is furan-2(5H)-one which is substituted by a hydroxymethyl group at position 4 and a 2-hydroxyethylidene group at position 5 (the 5E isomer). A direct precursor of patulin in cell-free preparations of Penicillium urticae patulin-minus mutants J1 and S11, but not S15. It has a role as a mycotoxin. It is a butenolide and a primary allylic alcohol.
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=C(CO)/C(=C\CO)O1
(5E)-4-(hydroxymethyl)-5-(2-hydroxyethylidene)furan-2-one
The molecule is a butenolide that is furan-2(5H)-one which is substituted by a hydroxymethyl group at position 4 and a 2-hydroxyethylidene group at position 5 (the 5E isomer). A direct precursor of patulin in cell-free preparations of Penicillium urticae patulin-minus mutants J1 and S11, but not S15. It has a role as a mycotoxin. It is a butenolide and a primary allylic alcohol.