has functional parent is conjugate base of itaconate(2-) 128.011 128.083 2-methylidenebutanedioate A dicarboxylic acid dianion that results from the deprotonation of both of the carboxylic acid groups of itaconic acid. Beilstein:3904702 C(C(CC([O-])=O)=C)([O-])=O C5H4O4 CAS:2964-00-3 CHEBI:14484 CHEBI:17240 CHEBI:24932 Gmelin:327340 InChI=1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h1-2H2,(H,6,7)(H,8,9)/p-2 KEGG:C00490 LVHBHZANLOWSRM-UHFFFAOYSA-L MetaCyc:ITACONATE Reaxys:3904702 chebi_ontology itaconate methylenesuccinate(2-) methylenesuccinic acid, ion(2-) dicarboxylic acid dianion succinate(2-) itaconic acid