Pronunciation: meth'il-ma-lon'ik as'id
2-Methylpropanedioic acid, an important intermediate in fatty acid metabolism; seen in elevated levels in cases of vitamin B12 deficiency. Note that methylmalonate is not methyl malonate, which is the dimethyl ester of malonate.
Synonym(s): isosuccinic acid
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Examples: glitazone, GI cocktail, etc.