L-Theanine

Modify Date: 2025-10-29 07:14:39

L-Theanine structure	Common Name	L-Theanine
	CAS Number	3081-61-6	Molecular Weight	174.198
	Density	1.2±0.1 g/cm3	Boiling Point	430.2±40.0 °C at 760 mmHg
	Molecular Formula	C₇H₁₄N₂O₃	Melting Point	207°C
	MSDS	Chinese USA	Flash Point	214.0±27.3 °C
	Symbol	GHS07	Signal Word	Warning

Use of L-Theanine

L-Theanine (L-Glutamic Acid γ-ethyl amide）is a non-protein amino acid contained in green tea leaves, which blocks the binding of L-glutamic acid to glutamate receptors in the brain, and with neuroprotective and anti-oxidative activities. L-Theanine causes anti-stress effects via the inhibition of cortical neuron excitation by oral intake[1][2][3].

Name	N5-ethyl-L-glutamine
Synonym	More Synonyms

Description	L-Theanine (L-Glutamic Acid γ-ethyl amide）is a non-protein amino acid contained in green tea leaves, which blocks the binding of L-glutamic acid to glutamate receptors in the brain, and with neuroprotective and anti-oxidative activities. L-Theanine causes anti-stress effects via the inhibition of cortical neuron excitation by oral intake[1][2][3].
Related Catalog	Signaling Pathways >> Others >> Others Research Areas >> Neurological Disease
References	[1]. Vuong QV, et al. L-Theanine: properties, synthesis and isolation from tea. J Sci Food Agric. 2011 Aug 30;91(11):1931-9. [2]. Kimura K, et al. L-Theanine reduces psychological and physiological stress responses. Biol Psychol. 2007 Jan;74(1):39-45. [3]. Takeshima M, et al. l-Theanine protects against excess dopamine-induced neurotoxicity in the presence of astrocytes. J Clin Biochem Nutr. 2016 Sep;59(2):93-99.

Description

Related Catalog

Signaling Pathways >> Others >> Others

Research Areas >> Neurological Disease

References

[1]. Vuong QV, et al. L-Theanine: properties, synthesis and isolation from tea. J Sci Food Agric. 2011 Aug 30;91(11):1931-9.

[2]. Kimura K, et al. L-Theanine reduces psychological and physiological stress responses. Biol Psychol. 2007 Jan;74(1):39-45.

[3]. Takeshima M, et al. l-Theanine protects against excess dopamine-induced neurotoxicity in the presence of astrocytes. J Clin Biochem Nutr. 2016 Sep;59(2):93-99.

Density	1.2±0.1 g/cm3
Boiling Point	430.2±40.0 °C at 760 mmHg
Melting Point	207°C
Molecular Formula	C₇H₁₄N₂O₃
Molecular Weight	174.198
Flash Point	214.0±27.3 °C
Exact Mass	174.100449
PSA	92.42000
LogP	-1.02
Vapour Pressure	0.0±2.2 mmHg at 25°C
Index of Refraction	1.492
InChIKey	DATAGRPVKZEWHA-YFKPBYRVSA-N
SMILES	CCNC(=O)CCC(N)C(=O)O
Storage condition	Store at?0-5°C

L-Theanine MSDS(Chinese)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H317
Precautionary Statements	P280
Hazard Codes	Xi:Irritant
Risk Phrases	R43
Safety Phrases	S28-S36/37
RIDADR	NONH for all modes of transport
HS Code	2924199090

Precursor 8
CAS#:75-04-7 Ethylamine CAS#:138036-14-3 2-(1,3-dioxo-1,... CAS#:56-86-0 L-glutamic acid CAS#:593-51-1 Methylamine hyd...
CAS#:56-85-9 L-Glutamine CAS#:557-66-4 Ethylamine hydr... CAS#:1499-55-4 H-Glu(OMe)-OH CAS#:142-47-2 L-(+)Sodium glu...
DownStream 2
CAS#:56-86-0 L-glutamic acid CAS#:75-04-7 Ethylamine

HS Code	2924199090
Summary	2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

L-Theanine

THEANINE,L

(5Z)-5-(Ethylimino)-5-hydroxy-L-norvaline

Nγ-Ethyl-L-glutamine

N5-ethylglutamine

L-Glutamic acid γ-(ethylamide)

N(5)-ethyl-L-glutamine zwitterion

Theanine

(2S)-2-amino-4-(ethylcarbamoyl)butanoic acid

N-γ-ethyl-L-glutamine

L-TheaMine

L-Glutamine, N-ethyl-

SUNTHEANINE

EINECS 221-379-0

MFCD00059653

L-Norvaline, 5-(ethylimino)-5-hydroxy-, (5Z)-

N5-Ethyl-L-glutamine

(S)-2-Amino-5-(ethylamino)-5-oxopentanoic acid

N'-Ethyl-L-glutamine

N(5)-ethyl-L-glutamine

N-Ethyl-L-glutamine

L-γ-Glutamylethylamide

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: L-Theanine
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

BioBioPha
China
Product Name: L-Theanine
Price: ￥Inquiry/5mg
Purity: 98.0%
Delivery: 10 Day
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Email: 1477035482@qq.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: L-Theanine
Price: ￥488.0/100g ￥188.0/25g ￥188.0/20mg
Purity: 98.0%
Delivery: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

DC Chemicals Limited
China
Product Name: L-Theanine
Price: $280.0/20mg
Purity: 98.0%
Delivery: 3 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: L-Theanine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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L-Theanine

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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.