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L-Arginine is a semi-essential or conditionally essential amino acid. This means that while the body can produce it in normal conditions, during periods of stress, illness, or rapid growth, it must be obtained from the diet.
It is a fundamental building block of proteins and plays a critical role in numerous physiological processes. Its most well-known function is as a precursor for the synthesis of Nitric Oxide (NO), a potent signaling molecule that relaxes blood vessels.
| Item | Requirement |
|---|---|
| Characters, Appearance | White or almost white, crystalline powder or colourless crystals |
| Identification | Infrared absorption |
| Assay | 98.5%-101.5% |
| Residue on ignition | <0.3% |
| Chloride(Cl) | <0.05% |
| Sulfate(SO4) | <0.03% |
| Iron(Fe) | <30ppm |
| Lead | <1ppm |







