SMILES: CC1=C(C=C(C=N1)C(=O)O)[O-]
Description: The molecule is a monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of 5-hydroxy-6-methylpyridine-3-carboxylic acid. It is a conjugate base of a 5-hydroxy-6-methylpyridine-3-carboxylic acid.