L-arginine is one of the 20 amino acids that build up protein. L-arginine is one of the non-essential amino acids, meaning it can be synthesised in the body.
L-arginine is a precursor of nitric oxide and other metabolites. It is an important component of collagen, enzymes and hormones, skin and connective tissues. L-arginine plays important roles in the synthesis of various protein molecules; creatine and insulin being the most easily recognised. It may have antioxidant property and reduces accumulation of compounds such as ammonia and plasma lactate, by-products of physical exercise. It also inhibits platelet aggregation and has also been known to decrease blood pressure.
Specification
Items | Standard |
Appearance | White crystals or crystalline powder |
Assay | 99.0~101.0% |
Specific rotation | +26.9~+27.9° |
Chloride(Cl) | ≤0.020% |
Ammonium(NH4) | ≤0.020% |
Sulfate(SO4) | ≤0.020% |
Iron(Fe) | ≤10ppm |
Heavy metals(Pb) | ≤10ppm |
Arsenic(As2O3) | ≤1ppm |
Other Amino Acids | Chromatographically not detectable |
Loss on drying | ≤0.50% |
Residue on ignition(Sulfated) | ≤0.10% |
pH | 10.5~12.0 |
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