Description
L-(-)-Malic Acid
L-(-)-Malic Acid QuickDetails
Chemical Name:L-(-)-Malic Acid
CAS No.: 97-67-6
Molecular Fomula: C4H6O5
Chemical Structure:
Molecular weight:134.09
Appearance:White crystalline powder
Assay: 99%min
L-(-)-Malic AcidTypical Properties
Item
Standard
Results
Appearance
Crystal or crystalline powder
crystalline powder
Odor
Special sour
Special sour
Assay (L-malic acid) %
≧99%
99.3%
αm(20℃, D)[dm2.kg-1]Specific rotation
-1.6~-2.6
-2.1
Residue on ignition
≦0.1
0.04
State of Solution
Pass the test
Qualified
Sulfate(SO4)%
≦0.02
<0.02
Chloride %
≦0.004
<0.002
Fumaric acid
≦0.5
0.05
Maleic acid
≦0.05
<0.01
Heavy metals (Pb)
≦10
<10
Arsenic
≦2.0
<2.0
Lead
≦2.0
<2.0
Conclusion
Qualified
L-(-)-Malic AcidApplication
Used as food additive and drug raw material and so on.
L-(-)-Malic AcidPackage
25kg/drum
