Legal number: CAS RN) : 74-79-3 EINECS no. : 200-811-1

　　Molecular formula: C₆H₁₄N₄O₂

　　Molecular weight: 174.2

　　Physical and chemical properties: hydrochloride is white or almost white crystalline powder hydrochloride, odourless, an indication. 218 ℃ when roasting knot, 225 ℃ and then into a solid. Melting point 235 ℃ (decomposition). Soluble in water, slightly soluble in hot ethanol, insoluble in ethanol.

　　Purpose: arginine is keeping infants growth essential amino acids. It is in the middle of the metabolites ornithine cycle, can cause into ammonia urea, lowering blood ammonia content. It is also the main components of sperm protein in promoting sperm production, sperm motion energy. In addition, the static note arginine, can stimulate the pituitary gland to release growth hormone, pituitary function can be used for the test.

　　Standard: AJI92