The molecule is an oxo dicarboxylic acid that is 4-hydroxy-6-oxo-1,6-dihydropyridine-2-carboxylic acid substituted by a 3-carboxy-3-oxoprop-1-en-1-yl group at position 5. It is an oxo dicarboxylic acid and a pyridone. It derives from a picolinic acid. It is a conjugate acid of a 5-(3-carboxy-3-oxoprop-1-en-1-yl)-4-hydroxy-6-oxo-1,6-dihydropyridine-2-carboxylate.
5-[(E)-3-carboxy-3-oxoprop-1-enyl]-4-hydroxy-6-oxo-1H-pyridine-2-carboxylic acid