L-Lysine
L-lysine is an L-alpha-amino acid; the L-isomer of lysine. It has a role as a micronutrient, an anticonvulsant, a nutraceutical, a mouse metabolite, a Saccharomyces cerevisiae metabolite, a plant metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is a L-alpha-amino acid, an aspartate family amino acid, a lysine and a proteinogenic amino acid. It is a conjugate base of a L-lysinium(1+). It is a conjugate acid of a L-lysinate. It is an enantiomer of a D-lysine. It is a tautomer of a L-lysine zwitterion and a L-Lysine zwitterion.
IUPAC: (2S)-2,6-diaminohexanoic acid
PubChem
Physical & Chemical Properties
| Melting Point | 224.5 dec °C |
| Solubility | 1000000 mg/L (at 20 °C) |
| Vapor Pressure | 5.28X10+9 mm Hg at 25 °C /extrapolated/ |
| Appearance | Liquid |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2922
Data: UN Comtrade
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