LKT Labs

Biochemicals for Life Science Research

L-Theanine

Product ID T2816
Cas No. 3081-61-6
Purity ≥98%
Product Unit SizeCostQuantityStock
1 g $58.90 In stock
5 g $201.80 In stock
25 g $638.30 In stock
Bulk Quote

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Description

L-Theanine is an amino acid that can be found in Camellia and Boletus; it is a glutamic acid analog. L-theanine exhibits neuroprotective, cognition enhancing, anxiolytic, and antipsychotic activities. L-Theanine is a weak agonist at AMPA and NMDA receptors, increasing brain DA, 5-HT, and GABA levels. This compound improves memory, cognition, mood, and attention in clinical settings. In animal models of cerebral ischemia, L-theanine inhibits apoptosis of hippocampal neurons, improving spatial memory.

Product Info

Cas No.

3081-61-6
Purity

≥98%
Formula

C7H14N2O3
Formula Wt.

174.19
Chemical Name

N-Ethyl-L-glutamine
IUPAC Name

(2S)-2-amino-5-(ethylamino)-5-oxopentanoic acid
Synonym

Theanine
Melting Point

210-215°C (dec)
Solubility

Soluble in water. Insoluble in alcohol.
Appearance

White Crystalline Powder

Shipping and Storage

Store Temp

Ambient
Ship Temp

Ambient

Downloads

MSDS

T2816 MSDS PDF
Info Sheet

T2816 Info Sheet PDF

References

Park SK, Jung IC, Lee WK, et al. A combination of green tea extract and l-theanine improves memory and attention in subjects with mild cognitive impairment: a double-blind placebo-controlled study. J Med Food. 2011 Apr;14(4):334-43. PMID: 21303262.

Ritsner MS, Miodownik C, Ratner Y, et al. L-theanine relieves positive, activation, and anxiety symptoms in patients with schizophrenia and schizoaffective disorder: an 8-week, randomized, double-blind, placebo-controlled, 2-center study. J Clin Psychiatry. 2011 Jan;72(1):34-42. PMID: 21208586.

Haskell CF, Kennedy DO, Milne AL, et al. The effects of L-theanine, caffeine and their combination on cognition and mood. Biol Psychol. 2008 Feb;77(2):113-22. PMID: 18006208.

Egashira N, Ishigami N, Pu F, et al. Theanine prevents memory impairment induced by repeated cerebral ischemia in rats. Phytother Res. 2008 Jan;22(1):65-8. PMID: 17705146.

Nathan PJ, Lu K, Gray M, et al. The neuropharmacology of L-theanine(N-ethyl-L-glutamine): a possible neuroprotective and cognitive enhancing agent. J Herb Pharmacother. 2006;6(2):21-30. PMID: 17182482.

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