|
Name
|
L - Asparagine
|
|---|---|
|
Synonyms
|
2 - amino - 3 - carbamoylpropanoic acid;
H - ASN - OH;
L - 2 - AMINOSUCCINAMIC ACID;
L - ASPARTIC ACID 4 - AMIDE;
L - (+) - ASPARAGINE;
L - ASPARAGINE; ASN;
ASPARAGINE
|
|
CAS NO
|
70 - 47 - 3
|
|
Molecular Formula
|
C4H8N2O3
|
|
Molecular Weight
|
132.12
|
|
EINECS Number
|
200 - 735 - 9
|
|
Melting point
|
235 °C (dec.) (lit.)
|
|
Specific rotation
|
34.5 º (c=10, 2N HCl)
|
|
Boiling point
|
244.01°C (rough estimate)
|
|
Density
|
1.543g/cm³
|
|
Refractive index
|
1.4880 (estimate)
|
|
Storage conditions
|
Keep in dark place, Inert atmosphere, Room temperature
|
|
Solubility
|
Practically insoluble in methanol, ethanol, ethyl acetate, benzene. Soluble in acids and alkalis.
|
|
Acidity coefficient (pKa)
|
2.17 (at 20°C)
|
|
Form
|
Powder
|
|
Color
|
White
|
|
Odor
|
Slightly sweet taste
|
|
pH value
|
5.41
|
|
Optical rotation
|
-5.625 (H₂O) +28.625 (1 mol dm⁻³ HCl)
|
|
Water solubility
|
H₂O: 20 g/L (20 ºC), clear, colorless
|
|
Usage
|
1. In the pharmaceutical field, it can be used to treat heart diseases, liver diseases, and hypertension, and has the effect of preventing and relieving fatigue. Combined with a variety of amino acids, it is made into amino acid infusions, which are used as ammonia antidotes, liver function promoters, and fatigue relievers.
2. In the food industry, it is an excellent nutritional supplement and added to various refreshing beverages; it is also the main raw material for the sweetener (aspartame) - aspartylphenylalanine methyl ester. 3. In the chemical industry, it can be used as a raw material for manufacturing synthetic resins. It can also be used as a nutritional additive in cosmetics, etc. |
Hot Tags: l - asparagine cas no.:70-47-3, China, manufacturers, suppliers, factory, custom, wholesale
