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Technical Data Sheet L-Malic acid
Compound Information
Product Name:
L-Malic acid
CAS No.:
97-67-6
Molecular Formula:
C4H6O5
Molecular Weight:
134.09
Storage:
Store at RT
Revision Date:
2026-04-15
Analytical Information
| Tests | Specifications |
|---|---|
| Appearance | White crystalline powder |
| Heavy Metals | ≤10 mg/kg (as Pb) |
| Arsenic (As2O2) | ≤2.0 mg/Kg |
| Anion | Chloride (Cl-): ≤ 0.004%, Sulfate (SO42-): ≤0.02% |
| Cation | Lead (Pb): ≤2 mg/kg |
| Specific Rotation | [a]D20= -1.6 to -2.6o |
| Transmission | State of solution: To pass test |
| Residue On Ignition | ≤ 0.10% |
| Assay by titration | ≥ 99% |
| Application | Used to selectively protect the a-amino group of amino acids. It is the starting material for the preparation of chiral compounds. |
| Additional Information | Fumaric Acid: ≤ 0.5%, Maleic Acid: ≤0.05% |
| MS | Pass test |
| 1H NMR | Pass test |
| 13C NMR | Pass test |
| IR | Pass test |
| Raman | Pass test |
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