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Name: Malic acid

Synonyms: DL-Hydroxybutanedioic acid

Molecular Structure:

Molecular Formula: C4H6O5

Molecular Weight: 134.09

CAS Number: 6915-15-7

EINECS: 230-022-8

Malic acid is an organic compound with the formula HO2CCH2CHOHCO2H. This dicarboxylic acid is the active ingredient in many sour or tart foods. The salts and esters of malic acid are known as malates. Malate anion is an intermediate in the citric acid cycle along with fumarate. Ca. 1M kg/y are produced by the hydration of maleic anhydride. Malic acid is found mostly in unripe fruits.

Product Name Malic acid
Index item Specification
Appearance White crystal powder
Assay (As C4H6O5) 99.0-100.5%
Specific rotation [α]D25℃ -0.10 - +0.10
Arsenic (as As2O3) 4 mg/kg max
Heavy metals (Pb) 10 mg/kg max
Fumaric Acid 1.0% max
Maleic Acid 0.05% max
Water-insoluble matter 0.1% max
Residue on ignition 0.1% max

Package: Crystal product is 25kgs/compound bag; lined plastic bags;

Storage:   Stored in a dry and cool place, keep away from strong light and heat.

Shelf life: Two years when stored properly in a well-closed container.



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