L-Alanine
L-alanine is the L-enantiomer of alanine. It has a role as an EC 4.3.1.15 (diaminopropionate ammonia-lyase) inhibitor and a fundamental metabolite. It is a L-alpha-amino acid, an alanine, a pyruvate family amino acid and a proteinogenic amino acid. It is a conjugate base of a L-alaninium. It is a conjugate acid of a L-alaninate. It is an enantiomer of a D-alanine. It is a tautomer of a L-alanine zwitterion.
IUPAC: (2S)-2-aminopropanoic acid
PubChem
Physical & Chemical Properties
| Melting Point | 300 dec °C |
| Boiling Point | 250 °C (sublimes) |
| Density | 1.432 g/cu cm at 22 °C |
| Solubility | 164000 mg/L (at 25 °C) |
| Vapor Pressure | 0.00000011 [mmHg] |
| Appearance | Other Solid |
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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