[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][Branch1][N][/C][=Branch1][Ring2][=C][\\C][O][/O][C][Ring1][Branch2][=O][C][O]"}, {"from": "gpt", "value": "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."}]