Malic acid is an organic compound with the formula HO2CCH2CHOHCO2H. It is a dicarboxylic acid that is made by all living organisms, contributes to the pleasantly sour taste of fruits, and is used as a food additive. Malic acid has two stereoisomeric forms (L- and D-enantiomers), though only the L-isomer exists naturally. The salts and esters of malic acid are known as malates. The malate anion is an intermediate in the citric acid cycle.
|APPEARANCE||white granulars or white crystalline powder having a strong acid taste.|
|SPECIFIC ROTATION [α]D25ºC||-0.10~+0.10|
|HEAVY METALS [Pb] mg/kg||≤10|
|FUMARIC ACID %||≤1.0|
|MALEIC ACID %||≤0.05|
|WATER-INSOLUBLE MATTER %||≤0.1|
|RESIDUE ON IGNITION||≤0.1|