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N-ethylglutamine

DL-Theanine

CAS: 34271-54-0

Molecular Formula: C7H14N2O3

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N-ethylglutamine - Names and Identifiers

Name DL-Theanine
Synonyms H-DL-The-OH
DL-THEANINE
DL-Theanine
N-ethylglutamine
N-Ethyl-L-glutamine
N-Ethyl-DL-glutamine
2-Amino-4-(ethylcarbamoyl)butanoic acid
2-amino-5-(ethylamino)-5-oxopentanoic acid
5-amino-2-(ethylamino)-5-oxopentanoic acid
CAS 34271-54-0
InChI InChI=1/C7H14N2O3/c1-2-9-6(10)4-3-5(8)7(11)12/h5H,2-4,8H2,1H3,(H,9,10)(H,11,12)

N-ethylglutamine - Physico-chemical Properties

Molecular FormulaC7H14N2O3
Molar Mass174.2
Density1.171±0.06 g/cm3(Predicted)
Melting Point200 °C
Boling Point430.2±40.0 °C(Predicted)
Flash Point214°C
Solubility Water (Sparingly)
Vapor Presure1.32E-08mmHg at 25°C
AppearanceSolid
ColorWhite to Off-White
pKa2.24±0.10(Predicted)
Storage Condition2-8°C
Refractive Index1.492
Physical and Chemical PropertiesTraits theanine is a unique free amino acid in tea, theanine is glutamic acid gamma-ethyl amide, sweet. The content of theanine varies with the variety and position of tea. Theanine is present in dry tea at 1-2% by weight.

theanine in the chemical structure and the brain active substance glutamine, glutamic acid similar, is the main component of the growth in the tea. Theanine content is about 1 ~ 2% of the new tea, and its content decreases with the fermentation process.
UseUsed as a flavoring agent

N-ethylglutamine - Risk and Safety

Hazard SymbolsXi - Irritant
Irritant
Risk Codes43 - May cause sensitization by skin contact
Safety DescriptionS28 - After contact with skin, wash immediately with plenty of soap-suds.
S36/37 - Wear suitable protective clothing and gloves.

N-ethylglutamine - Reference

Reference
Show more
1. [IF=7.514] Xiangyang Guo et al."Contribution of l-theanine to the formation of 2,5-dimethylpyrazine, a key roasted peanutty flavor in Oolong tea during manufacturing processes."Food Chem. 2018 Oct;263:18
2. [IF=7.514] Xiangyang Guo et al."Aroma compositions of large-leaf yellow tea and potential effect of theanine on volatile formation in tea."Food Chem. 2019 May;280:73
3. [IF=5.279] Jie Zhou et al."LC-MS-Based Metabolomics Reveals the Chemical Changes of Polyphenols during High-Temperature Roasting of Large-Leaf Yellow Tea."J Agr Food Chem. 2019;67(19):5405–5412
4. [IF=7.514] Yinyin Liao et al."Visualized analysis of within-tissue spatial distribution of specialized metabolites in tea (Camellia sinensis) using desorption electrospray ionization imaging mass spectrometry."Food Chem. 2019 Sep;292:204
5. [IF=7.514] Huijun Wang et al."Untargeted metabolomics coupled with chemometrics approach for Xinyang Maojian green tea with cultivar, elevation and processing variations."Food Chem. 2021 Aug;352:129359
6. [IF=7.514] Xiangyang Guo et al."Effect of the roasting degree on flavor quality of large-leaf yellow tea."Food Chem. 2021 Jun;347:129016
7. [IF=5.279] Hui Li et al."Relationship between Secondary Metabolism and miRNA for Important Flavor Compounds in Different Tissues of Tea Plant (Camellia sinensis) As Revealed by Genome-Wide miRNA Analysis."J Agr Food Chem. 2021;69(6):2001–2012
8. [IF=4.546] Hui Bai et al."L-Theanine Reduced the Development of Knee Osteoarthritis in Rats via Its Anti-Inflammation and Anti-Matrix Degradation Actions: In Vivo and In Vitro Study."Nutrients. 2020 Jul;12(7):1988
9. [IF=4.196] Zhou Ziwen et al."K solubilizing bacteria (Bacillus) promote theanine synthesis in tea roots (Camellia sinensis) by activating CsTSI activity."Tree Physiol. 2022 Mar;:
10. [IF=4.411] Shuang Mei et al."The Physiology of Postharvest Tea (Camellia sinensis) Leaves, According to Metabolic Phenotypes and Gene Expression Analysis."Molecules. 2022 Jan;27(5):1708
11. [IF=5.396] Chunyin Qin et al."Comparison on the chemical composition, antioxidant, anti-inflammatory, α-amylase and α-glycosidase inhibitory activities of the supernatant and cream from black tea infusion."Food & Function. 2022 Apr;:

N-ethylglutamine - Reference Information

introduction DL-theanine is a mixture of L-theanine and D-theanine. Tea is rich in a variety of amino acids, of which L-theanine (L-thiamine) has edible and health functions, which is beneficial to human body, while free D-theanine has more side effects on human body.
use as flavoring agent
Last Update：2024-04-10 22:40:09
N-ethylglutamine
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Shanghai Amole Biotechnology Co., Ltd.
Spot supply
Product Name: 2-Amino-5-(ethylamino)-5-oxopentanoicacid Request for quotation
CAS: 34271-54-0
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365 Click to send a QQ message
Wechat: 18916960931
Shanghai Macklin Biochemical Co., Ltd
Spot supply
Product Name: 2-Amino-5-(ethylamino)-5-oxopentanoic acid Visit Supplier Webpage Request for quotation
CAS: 34271-54-0
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328 Click to send a QQ message
WhatsApp: +86-18821248368
MedChemExpress (MCE)
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CAS: 34271-54-0
Tel: 609-228-6898
Email: sales@medchemexpress.com
　　　　 tech@medchemexpress.com
Mobile: 609-228-6898
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: DL-Theanine Request for quotation
CAS: 34271-54-0
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Shanghai Yuanye Bio-Technology Co., Ltd.
Product Name: L-Theanine Visit Supplier Webpage Request for quotation
CAS: 34271-54-0
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
View History
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