. . . . "Methylmalonic Acid"@en . . . . . . . "experimental"@en . . . . . . . . . . . . . . . . . . . . "A malonic acid derivative which is a vital intermediate in the metabolism of fat and protein. Abnormalities in methylmalonic acid metabolism lead to methylmalonic aciduria. This metabolic disease is attributed to a block in the enzymatic conversion of methylmalonyl CoA to succinyl CoA. [PubChem]"@en . . . . . . "516-05-2"@en . . . .