The molecule is a dicarboxylic acid dianion obtained by deprotonation of the carboxy groups of (-)-DCA-CC; major species at pH 7.3. It is a conjugate base of a (-)-DCA-CC. It is an enantiomer of a (+)-DCA-CC(2-).
(2R,3R)-5-[(E)-2-carboxylatoethenyl]-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-2,3-dihydro-1-benzofuran-3-carboxylate