| CAS NO.: |
6915-15-7(Standard: FCCIV,1996) |
| Name: |
D(+)-malic acid |
| Function: |
|
|
| DESCRIPTION |
white crystals or white crystalline powder, soluble in water, alcohol and other organic solvent. Its aqueous solution is acidic. |
| Chemical Name |
R-hydroxy butanedioic acid |
| Molecular Formula |
C 4 H 6 O 5 |
| Molecular Weight |
134.09 |
SPECIFICATION
(FCCIV,1996) |
Assay(as C 4 H 6 O 5 ) |
99.0%~ 100.5% |
| Optical purity
(e.e%,Chiral HPLC)
|
98.0% Min |
|
| Specific Rotation (c=8.5,H 2 O) |
+1.6 ~ +2.6 |
| Arsenic(As 2 O 3 ) |
2.0mg/kg Max |
| Heavy Metal(Pb) |
20mg/kg Max |
| Residue On Ignition |
0.1% Max |
| Chloride[Cl-] |
0.01% Max |
| Sulfate |
0.04% Max |
| Fumaric Acid |
0.5% Max |
| Maleic Acid |
0.05% Max |
| MAIN FUNCTION AND PURPOSE |
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 insubstitutable in asymmetry synthesis of some chiral compounds. |
| PACKING |
25kg net weight in cardboard drum or according to customer requirements |
| STORAGE |
Kept airtightly in a light-proof, dry and cool place. |
|
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