The molecule is a dicarboxylic acid dianion obtained by deprotonation of both carboxy groups of furan-2,5-dicarboxylic acid; major species at pH 7.3. It is a dicarboxylic acid dianion and a furancarboxylate. It is a conjugate base of a furan-2,5-dicarboxylic acid.
furan-2,5-dicarboxylate