The molecule is conjugate base of 7,8-dihydro-7,8-dihydroxykynurenic acid; major species at pH 7.3. It is a quinolinemonocarboxylate and a hydroxy monocarboxylic acid anion. It is a conjugate base of a 7,8-dihydro-7,8-dihydroxykynurenic acid.
7,8-dihydroxy-4-oxo-7,8-dihydro-1H-quinoline-2-carboxylate