Malic Acid By Healchem Co,ltd .

Synonyms: Hydrozybutanedioic acid, DL-Malic acid
Molecular Formula C4H6O5 Molecular Weight134.09

Properties:
white crystals or white crystalline powder, soluble in water, alcohol and other organic solvent. Its aqueous solution is acidic.

Specification:
items index
Assay(as C4H6O5) 99.0%~100.5%
Optical purity(e.e%,Chiral HPLC) 98.0% Min
Specific Rotation (c=8.5,H2O) +1.6 ~+2.6
Arsenic(As2O3) 2.0mg/kg Max
Heavy Metal(Pb) 20mg/kg Max
Residue On Ignition 0.1% Max
Chloride[Cl-] 0.01% Max
Fumaric Acid 0.5% Max
Maleic Acid 0.05% Max
Sulfate 0.04% Max

Usage:
It is an important four-carbon atoms chiral pool. It is mainly used in many fields including chiral pharmaceuticals, chiral additives and chiral auxiliaries. It is used as chiral pool of chiral synthesis in pharmaceutical and food industries. As an optically active organic acid, it is in substitutable in asymmetry synthesis of some chiral compounds.