Product Name L-Arginine Hydrochloride Chemical Name L-2-Amino-5-guanidinopentanoic acid hydrochloride~H-Arg-OH.HCl CAS No. 1119-34-2 MF C6H14N4O2.HCl EINECS No. 214-275-1 Molecular Weight 210.66 Appearance White crystals or crystalline powder Density 1.42 Melting Point 226-230 °C(lit.) Water Solubility Soluble in water. Slightly soluble in hot alcohol. Purity 99%min Quality Standards AJI92