Short Description:

Product Name: L-Arginine

CAS No: 74-79-3

Molecular FormulaC6H14N4O2 

Molecular Weight174.20 


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White crystals powder

Specific Rotation[α]20/D +26.3°+27.7°
Chloride(CL) ≤0.05%
SulphateSO42- ≤0.03%
Iron(Fe) ≤30ppm
Residue on ignition ≤0.30%
Heavy metal(Pb) ≤15ppm
Assay 98.5%101.5%
Loss on drying  ≤0.50%
Conclusion The results conform with  USP35 standard.

Appearance: White powder
Product Quality meets: Ferment grade, quality meets AJI92, USP38.
Package: 25kg / barrel


L-arginine is a chemical substance with the molecular formula of C6H14N4O2. After water recrystallization, it loses crystal water at 105 ℃, and its water solubility is strong alkaline, which can absorb carbon dioxide from the air. Soluble in water (15%, 21 ℃), insoluble in ether, slightly soluble in ethanol.

It is a non essential amino acid for adults, but it is produced slowly in the body. It is an essential amino acid for infants and has a certain detoxification effect. It is abundant in protamine and the basic composition of various proteins, so it exists widely.


Arginine is a component of ornithine cycle and has extremely important physiological functions. Eating more arginine can increase the activity of arginase in liver and help to change ammonia in blood into urea and excrete it. Therefore, arginine is beneficial to hyperammonemia, liver dysfunction, etc

L-arginine is also the main component of sperm protein, which can promote sperm quality and improve sperm motility energy

Arginine can effectively improve immunity, promote the immune system to secrete natural killer cells, phagocytes, interleukin-1 and other endogenous substances, which is beneficial to fight against cancer cells and prevent virus infection. In addition, arginine is the precursor of L-ornithine and L-proline, and proline is an important element of collagen. The supplement of arginine can obviously help the patients with severe trauma and burn who need a lot of tissue repair, and reduce infection and inflammation.

Arginine can improve some nephrotic changes and dysuria caused by high renal pressure. However, as arginine is an amino acid, it may also cause burden on patients with renal failure. Therefore, for patients with severe renal insufficiency, it is best to consult with the attending physician before using it.

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