H-DL-Lys-OH.HCl

1. Racemic Essential Amino Acid

DL-Lysine monohydrochloride is a racemic mixture containing equal parts of D- and L-lysine enantiomers . As an essential amino acid, it cannot be synthesized by the human body and must be obtained through diet or supplementation . Unlike the naturally occurring L-lysine, this synthetic DL-form has no optical activity, with a specific rotation range of [α]20D -0.5° to +0.5° (c=8, HCl) .

2. Versatile Nutritional Additive

This compound serves as an important nutritional supplement in both animal feed and human applications . In the livestock industry, it is widely added to swine and poultry feed to promote growth and improve feed efficiency . In the pharmaceutical and food sectors, it serves as a raw material for food fortification and is a key ingredient in the synthesis of lysine acetylsalicylate (Aspirin-Lysine) for intravenous administration .

3. Biochemical Research Reagent

DL-Lysine monohydrochloride is widely used in biochemical research and peptide synthesis . It is utilized as a standard in amino acid analysis, as a component in cell culture media, and as a building block for constructing polylysine polymers used in polypeptide gels and films . The compound typically appears as a white crystalline powder with a purity of ≥98% (HPLC) and a melting point of approximately 267°C (decomposition) .