A neuroprotective amino acid
Related Products
Isomer(s)
36092N-acetyl-L-Ornithine
Technical Support & Resources

Information provided in the product description is from published literature. Due to the nature of scientific experimentation, your results (e.g., selectivity and effective concentrations) or specific application for this product may differ. If you have questions about how this product fits your application, please contact our technical support staff.

Visit our FAQ

Contact Us

Toll Free Phone (USA and Canada Only): (888) 526-5351
Direct Phone: (734) 975-3888

Request Technical Support

Technical Support Request

To streamline the process attach the appropriate questionnaire to your inquiry.

Download IHC QuestionnaireDownload WB Questionnaire

View Our Privacy Statement for details on how we use and protect your data. In addition, this site is protected by hCaptcha and its Privacy Policy and Terms of Service apply.

L-Theanine

Item No. 20832

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
N-ethyl-L-glutamine
CAS Number
3081-61-6
Synonyms
  • L-Glutamic Acid γ-ethyl amide
  • γ-ethylamino-L-Glutamic Acid
  • 5-N-ethyl-Glutamine
  • NSC 21308
Molecular Formula
C7H14N2O3
Formula Weight
174.2
Purity
≥95%
Formulation (Request formulation change)
A crystalline solid
Solubility(Learn about Variance in Solubility)
PBS (pH 7.2): 10 mg/ml
SMILES
OC([C@@H](N)CCC(NCC)=O)=O
InChi Code
InChI=1S/C7H14N2O3/c1-2-9-6(10)4-3-5(8)7(11)12/h5H,2-4,8H2,1H3,(H,9,10)(H,11,12)/t5-/m0/s1
InChi Key
DATAGRPVKZEWHA-YFKPBYRVSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
Recommended Products

Certificates of Analysis & Batch Specific Data

Provide batch numbers separated by commas to download or request available product inserts, QC sheets, certificates of analysis, data packs, and GC-MS data.

Download most recent Certificate of Analysis for this product

    500 mg

    $36

    Add

    1 g

    $55

    Add

    5 g

    $169

    Add
    Product Description

    L-Theanine is the major amino acid found in Camellia sinensis, the source of green tea.1 It is an analog of the excitatory neurotransmitter, glutamate, and thusly, binds to glutamate receptors.2 L-Theanine can antagonize various glutamate receptor subtypes as well as inhibit glutamine and glutamate transporters, which has been shown to be neuroprotective in animal models of focal cerebral ischemia.2,3 Further, L-theanine is reported to increase brain levels of dopamine, serotonin, GABA, nerve growth factor, and brain-derived neurotrophic factor.2,3

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Thippeswamy, R., Gouda, K.G., Roa, D.H., et al. Determination of theanine in commercial tea by liquid chromatography with fluorescence and diode array ultraviolet detection. J. Agric. Food Chem. 54(19), 7014-7019 (2006).

    2. Eschenauer, G., and Sweet, B.V. Pharmacology and therapeutic uses of theanine. Am. J. Health Syst. Pharm. 63(1), 26, 28-30 (2006).

    3. Nathan, P.J., 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. 6(2), 21-30 (2006).