The molecule is an organic anion that is the conjugate base of 4-hydroxy-2,5-dimethyl-3-furanone, obtained by deprotonation of the hydroxy group with concomitant keto/enol-type tautomerisation. It is thought to be a major microspecies at pH 7.3. It is a conjugate base of a 4-hydroxy-2,5-dimethylfuran-3-one.
4-hydroxy-2,5-dimethylfuran-3-olate