L-Glutamine
L-glutamine is an optically active form of glutamine having L-configuration. It has a role as a micronutrient, a nutraceutical, an EC 1.14.13.39 (nitric oxide synthase) inhibitor, a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a human metabolite. It is a L-alpha-amino acid, a glutamine family amino acid, a glutamine and a proteinogenic amino acid. It is a conjugate base of a L-glutaminium. It is a conjugate acid of a L-glutaminate. It is an enantiomer of a D-glutamine. It is a tautomer of a L-glutamine zwitterion.
IUPAC: (2S)-2,5-diamino-5-oxopentanoic acid
PubChem
Physical & Chemical Properties
| Melting Point | 185.5 dec °C |
| Density | 1.364 g/cu cm |
| Solubility | 41300 mg/L (at 25 °C) |
| Vapor Pressure | 0.00000002 [mmHg] |
| pH | pH = 5-6 at 14.6 g/L at 25 °C |
| Appearance | Opaque solid; [Merck Index] White powder; [Sigma-Aldrich MSDS] |
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): 2924
Data: UN Comtrade
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