The molecule is a 4-hydroxy-5-(4-hydroxybenzylidene)-3-(4-hydroxyphenyl)furan-2(5H)-one in which the double bond adopts a Z-configuration. It is a marine metabolite isolated from the fungus Aspergillus terreus and exhibits antiviral activity. It has a role as an Aspergillus metabolite, a marine metabolite, an antiviral agent and an EC 3.2.1.20 (alpha-glucosidase) inhibitor. It is a 4-hydroxy-5-(4-hydroxybenzylidene)-3-(4-hydroxyphenyl)furan-2(5H)-one and an aspulvinone. It is a conjugate acid of an aspulvinone E(1-).
(5Z)-4-hydroxy-3-(4-hydroxyphenyl)-5-[(4-hydroxyphenyl)methylidene]furan-2-one