has role has functional parent dicarboxylic acid dianion fumarate(2-) mesaconate(2-) (2E)-2-methylbut-2-enedioate 128.011 128.08290 2-Methylfumarate A dicarboxylic acid dianion that is the conjugate base of mesaconic acid. C5H4O4 CHEBI:11622 CHEBI:14584 CHEBI:19700 CHEBI:36986 C\C(=C/C([O-])=O)C([O-])=O HNEGQIOMVPPMNR-NSCUHMNNSA-L InChI=1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/p-2/b3-2+ KEGG:C01732 Mesaconate chebi_ontology mesaconate methylfumarate plant metabolite