CAS NO. 72-18-4
l-2-amino-3-methylbutyric-acid
Formula : C5H11NO2
Frame : 
Molecular weight : 117.15
Nitrogen : 11.96%
[ Description ]
White crystals or crystalline powder; odorless; tastes at
first slightly sweet and then bitter.
Freely soluble in formic acid, soluble in water, practically
insoluble in ethanol and in ether.
Dissolves in dilute hydrochloric acid.
Solubility (g/100g H2O) : 5.75(20°C), 6.50(40°C), 7.70(60°C)
[ Quality standard ]
Item\Specification\Standard |
AJI92 |
USP24 |
FCC4 |
| Assay |
99.0
-100.5% |
98.5
-101.5% |
98.5
-101.5% |
| PH |
5.5-6.5 |
5.5-7.0 |
5.5-7.0 |
Specific rotation [a]D20
[a]D25 |
+27.6
- +29.0
|
+26.6
- +28.8 |
+26.5
- +29.0
|
| Transmittance (T430) |
≥98.0% |
|
|
| Chloride (Cl) |
≤0.02% |
≤0.05% |
|
| Ammonium (NH4) |
≤0.02% |
|
|
| Sulfate (SO4) |
≤0.02% |
≤0.03% |
|
| Iron (Fe) |
≤10ppm |
≤0.003% |
|
| Heavy metals (Pb) |
≤10ppm |
≤0.0015% |
≤20ppm |
| Arsenic |
≤1ppm(As2O3) |
|
|
| Lead (Pb) |
|
|
≤10ppm |
| Other amino acids |
Conforms |
|
|
| Loss on drying |
≤0.20% |
≤0.3% |
≤0.3% |
| Residue on ignition |
≤0.10% |
≤0.1% |
≤0.2% |
| Organic volatile impurities |
|
Meets the requirements |
|
| Pyrogen(for injection) |
Nonpyrogenic |
|
|
[ Function and Usage ]
It is an amino acid type drug. It is one of 8 kinds essential
amino acid for human body. The main purpose is made of mixed
Amino acid infusions and injections. The lack of L-valine
may influence the growth of body, cause neuropathic obstacle,
anaemia. It has especially wide application in the field of
pharmaceutical and food industry.
[ Package ]
* Carton box,double aluminum foil bags inside(25kgs)
* Fibred drum, double polyethylene bags inside(25kgs)
[ Storage ]
Cool, dry, dark in closed containers; recommended limit 2
years.
|
L-Valine
