kojic acid

5-Hydroxy-2-(hydroxymethyl)-4H-pyran-4-one;5-Hydroxy-2-hydroxymethyl-4H-4-pyranone;5-hydroxy-2-(hydroxmetyl)-4H-pyran-4-one;3-hydroxy-6-hydroxymethyl-4H-pyran-4-one;5-Hydroxy-2-(hydroxymethyl)-4-pyrone;