L-Arginine hydrochloride Basic information |
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L-Arginine hydrochloride Chemical Properties |
Melting point |
226-230 °C(lit.) |
alpha |
22 º (c=8,6N HCl) |
density |
1.42 |
vapor pressure |
<1 Pa (20 °C) |
FEMA |
3819 | L-ARGININE |
storage temp. |
2-8°C |
solubility |
H2O: 100 mg/mL |
form |
powder |
color |
white |
Odor |
odorless |
PH |
5.5-7.0 (25℃, 1M in H2O) |
PH Range |
5.5 - 7 |
optical activity |
[α]20/D +22.0±0.5°, c = 5% in 5 M HCl |
Water Solubility |
Soluble in water. Slightly soluble in hot alcohol. |
λmax |
λ: 260 nm Amax: ≤0.2
λ: 280 nm Amax: ≤0.1 |
Sensitive |
Hygroscopic |
Merck |
14,780 |
BRN |
3631658 |
Stability: |
Stable. Incompatible with strong oxidizing agents. |
CAS DataBase Reference |
1119-34-2(CAS DataBase Reference) |
EPA Substance Registry System |
L-Arginine, monohydrochloride (1119-34-2) |
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L-Arginine hydrochloride Usage And Synthesis |
Chemical Properties |
White crystalline powder |
Uses |
gastric acid depressant |
Uses |
An essential amino acid for human development. Precursor for nitric oxide. Ammonia detoxicant (hepatic failure); diagnostic aid (pituitary function). |
Uses |
L-Arginine monohydrochloride is used in the treatment of heart and circulatory diseases. It is a precursor of nitric oxide synthesis that induces vasodilation in vivo, there by relaxing blood vessels. It is also used in the treatment of angina and other cardiovascular problems. It is an important intermediate in the urea cycle and involved in the detoxification of nitrogenous wastes. It is commonly used in cell culture media and drug development. |
Brand name |
R-Gene 10 (Pharmacia & Upjohn). |
Biochem/physiol Actions |
L-Arginine is considered as a semi essential amino acid. In most mammals including humans, L-Arginine synthesis occurs through intestinal-renal axis, from glutamine, glutamate and proline. Abnormal levels of L-Arginine is associated with the development of kidney and cardiovascular disease. L-arginine is found to decrease fat mass and visceral adiposity. |
Safety Profile |
Moderately toxic by intraperitoneal route. Mildly toxic by ingestion. An experimental teratogen. When heated to decomposition it emits very toxic fumes of NOx and HCl. |
Purification Methods |
A likely impurity is ornithine. Crystallise the salt from H2O at pH 5-7, by adding EtOH to 80% (v/v). [Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 p 1841 1961, Beilstein 4 IV 2649.] |
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L-Arginine hydrochloride Preparation Products And Raw materials |
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