has role has parent hydride independent continuant 4-pyranones primary alcohol enol 4H-pyran kojic acid A pyranone that is 4<em>H</em>-pyran substituted by a hydroxy group at position 5, a hydroxymethyl group at position 2 and an oxo group at position 4. It has been isolated from the fungus <em>Aspergillus oryzae</em>. CHEBI:43572 EC 1.14.18.1 (tyrosinase) inhibitor NF-kappaB inhibitor Aspergillus metabolite skin lightening agent EC 1.10.3.1 (catechol oxidase) inhibitor EC 1.10.3.2 (laccase) inhibitor EC 1.13.11.24 (quercetin 2,3-dioxygenase) inhibitor EC 1.4.3.3 (D-amino-acid oxidase) inhibitor