The molecule is a pyridinemonocarboxylate resulting from the deprotonation of the carboxy group of 5-formyl-3-hydroxy-2-methylpyridine-4-carboxylic acid. The major species at pH 7.3. It is a conjugate base of a 5-formyl-3-hydroxy-2-methylpyridine-4-carboxylic acid.
4-carboxy-5-formyl-2-methylpyridin-3-olate