L-Lysine is an essential proteinogenic amino acid used in a wide range of applications. It has been used as a supplement in cell culture media as a substrate for enzymes such as L-lysine oxidase (EC 1.4.3.14) as a component of poly-lysine polymers as a substrate for oxidation and glycation mechanism studies.

For R&D use onlynot for drug household or other uses.

L-lysine contains basic side chain and is hydrophilic in nature. The N-butyl amino group in the side chain is found to be protonated at physiological pH. Upon degradation L-lysine gives ketone bodies. Transamination of lysine with -ketoglutarate produces acetoacetyl CoA.