CAS: 39665-12-8 EC No: 200-294-2 MDL No: MFCD00151035 RTECS: OL5540000 Powder Molecular Formula: C₆H₁₄N₂O₂·H₂O MW: 164.20 Optical Rotation: [α]20/D +22.5±1°, c = 2% in 6M HCl

L-Lysine is an essential proteinogenic α amino acid. It contains an N-butyl amino group in the side chain, and this moiety is protonated at physiological pH. In addition, L-lysine is one of the two amino acids that are degraded to give ketone bodies (a ketogenic amino acid). L-Lysine is…