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Record Information
Version1.0
StatusDetected and Quantified
Creation Date2022-04-29 22:44:59 UTC
Update Date2022-12-15 22:52:19 UTC
Metabolite IDMMDBc0049861
Metabolite Identification
Common Name2-Methylmaleate
Description2-Methylmaleate, also known as citraconic acid or methylmaleic acid, belongs to the class of organic compounds known as methyl-branched fatty acids. These are fatty acids with an acyl chain that has a methyl branch. Usually, they are saturated and contain only one or more methyl group. However, branches other than methyl may be present. 2-Methylmaleate is a dicarboxylic acid consisting of maleic acid having a methyl substituent at the 2-position. 2-Methylmaleate exists as a white solid. It is the cis-isomer of mesaconic acid and is one of the pyrocitric acids formed upon the heating of citric acid. 2-Methylmaleate has been detected in the urine of both normal and fasting individuals (PMID: 6778884 ). 2-Methylmaleate is also elevated in the urine of individuals with methylmalonic acidaemia who have suffered ketotic attacks (PMID: 116077 ). Altered serum levels of 2-methylmaleate have been detected in patients with primary biliary cholangitis (PMID: 28400566 ).
Structure
Synonyms
Molecular FormulaC5H6O4
Average Mass130.0987
Monoisotopic Mass130.02660868
IUPAC Name(2Z)-2-methylbut-2-enedioic acid
Traditional Namecitraconic acid
CAS Registry NumberNot Available
SMILES
C\C(=C\C(O)=O)C(O)=O
InChI Identifier
InChI=1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/b3-2-
InChI KeyHNEGQIOMVPPMNR-IHWYPQMZSA-N