[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][P][C@@H1][C][=Branch1][N][=C][Branch1][Branch2][C][=Branch1][C][=O][O][Ring1][=Branch1][O][O][O]"}, {"from": "gpt", "value": "The molecule is a gamma-lactone that is 5-(hydroxymethyl)furan-2(5H)-one substituted at positions 3 and 4 by hydroxy groups (the 5R-stereoisomer). It has a role as a cofactor, an antioxidant and a fungal metabolite. It is a conjugate acid of a dehydro-D-arabinono-1,4-lactone(1-)."}]