The molecule is an amino acid zwitterion, obtained by transfer of a proton from the carboxylic acid group to the amino group of 2,3-dihydro-3-hydroxyanthranilic acid. It is a tautomer of a 2,3-dihydro-3-hydroxyanthranilic acid.
6-azaniumyl-5-hydroxycyclohexa-1,3-diene-1-carboxylate