The molecule is a furopyran and lactone that is (2H-pyran-3(6H)-ylidene)acetic acid which is substituted by hydroxy groups at positions 4 an 6 and in which the hydroxy group at position 4 has condensed with the carboxy group to give the corresponding bicyclic lactone. Also known as neopatulin, it is a mycotoxic substance produced by Aspergillus and Penicillium species. It has a role as a mycotoxin, an antibacterial agent and a Penicillium metabolite. It is a gamma-lactone, a furopyran and a lactol.
6-hydroxy-4,6-dihydrofuro[3,2-c]pyran-2-one