L-Arginine monohydrochloride is a fine chemical product from the brand RESEARCH-LAB FINE CHEM INDUSTRIES. It is also known as (S)-(+)-2-Amino 5-[(aminoiminomethyl)amino]pentanoic acid monohydrochloride.Molecular Formula: C6H14N4O2 HClCAS Number: 1119-34-2 Molecular Weight: 210.66Quantity: 25 gm/BottlePurity: >98%The product is used by athletes to increase oxygen delivery and blood flow during exercise.Hydrogen chloride is fused with arginine to get the supplement more palatable and to improve its absorption by the digestive system.