The molecule is an oxo carboxylic acid anion that is the conjugate base of 5-(3'-carboxy-3'-oxopropyl)-4,6-dihydroxypicolinic acid. It is a conjugate base of a 5-(3'-carboxy-3'-oxopropyl)-4,6-dihydroxypicolinic acid.
6-carboxy-3-(3-carboxy-3-oxopropyl)-2-oxo-1H-pyridin-4-olate