Malic acid

Malic Acid is an organic compound. It is a dicarboxylic acid that is made by all living organisms, contributes to the sour taste of fruits, and is used as a food additive. Malic Acid has two stereoisomeric forms (L- and D-enantiomers), although 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. Malic acid has a clean, smooth taste and persistent sourness, allowing it to be blended with multiple food acids, sugars, high intensity sweeteners and flavours to create unique taste experiences. Not to be confused with Maleic Acid or Malonic Acid.


Molar Weight134.09 g/mol
Melting Point131.1°C
Flash Point202.8°C
FormsCrystals, White

Uses and Applications

Key applications

  • Buffer agent
  • Flavouring agent
  • Wine production
  • pH control
  • Acidifying agent
  • Personal care
  • Anti-ageing products


  • Cosmetics
  • Food

Synonyms: Malic Acid, Äpfelsäure, 2-Hydroxybernsteinsäure, Apple Acid, DL Malic Acid, E 296, Hydroxybutanedioic Acid, Hydroxysuccinic Acid

Chemical Formula: C4H6O5

CAS Number: 6915-15-7