2-(carboxylatomethyl)-5-oxo-2,5-dihydrofuran-2-ide-3-carboxylate
2-(carboxylatomethyl)-5-oxo-2,5-dihydrofuran-2-ide-3-carboxylate
Trianion of 2-(carboxymethyl)-5-oxo-2,5-dihydro-3-furoic acid arising from deprotonation of the two carboxy groups as well as removal of the acidic proton at C2; major species at pH 7.3.