CAS NO. 61-90-5
l-2-amino-4-methylvaleric-acid
Formula : C6H13NO2
Frame : 
Molecular weight : 131.17
Nitrogen : 10.68%
[ Description ]
White crystals or crystalline powder; odorless; slightly bitter
taste. Freely soluble in formic acid, sparingly soluble in
water, practically insoluble in ethanol and in ether. Dissolves
in dilute hydrochloric acid.
Solubility (g/100g H2O) : 2.38(20°C), 2.63(40°C),
3.19(60°C)
Melting point : 293-295°C ; 337°C ( disintegrate
); 145-148°C ( sublimation )
[ Quality standard ]
Item\Specification\
Standard |
AJI92 |
USP24 |
FCC3 |
| Assay |
99.0
-100.5% |
98.5
-101.5% |
≥98.5% |
| PH |
5.5-6.5 |
5.5-7.0 |
5.5-7.0 |
Specific rotation [a]D20
[a]D25 |
+14.9
- +16.0
|
+14.9
- +17.3 |
+14.9
- +16.5
|
| Transmittance (T430) |
≥98.0% |
|
|
| Chloride (Cl) |
≤0.020% |
≤0.05% |
|
| Ammonium (NH4) |
≤0.02% |
|
|
| Sulfate (SO4) |
≤0.020% |
≤0.03% |
|
| Iron (Fe) |
≤10ppm |
≤0.003% |
≤50ppm |
| Heavy metals (Pb) |
≤10ppm |
≤0.0015% |
≤20ppm |
| Arsenic |
≤1ppm
(As2O3) |
≤1.5ppm
(As) |
≤3ppm
(As) |
| Lead (Pb) |
|
|
≤10ppm |
| Other amino acids |
≤0.5%
(20ugT1c) |
|
|
| Loss on drying |
≤0.20% |
≤0.2% |
≤0.10% |
| Residue on ignition |
≤0.10% |
≤0.4% |
≤0.10% |
| Organic volatile impurities |
|
Meets the requirements |
|
| Pyrogen(for injection) |
Nonpyrogenic |
|
|
[ Function and Usage ]
It is one of 8 kinds essential amino acid for human body,
widely used in medical fields and food industry. It is often
designed to prepare sorts of mixed amino acid preparation.
And used as medicament of curing diabetes.
[ 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-Leucine
