Basic information
- Name:
L-Glutamine,N-ethyl-
- Superlist Name:
- L-Theanine
- CAS No.:
3081-61-6
- Molecular Structure:
- Formula:
- C7H14N2O3
- Molecular Weight:
- 174.2
- Synonyms:
- Glutamine,N-ethyl-, L- (6CI,7CI,8CI);NSC 21308;Ng-Ethyl-L-glutamine;Suntheanine;Theanin;Theanine;L-Theanine (Ngamma-ethyl-L-glutamine);
- EINECS:
- 221-379-0
- Density:
- 1.171 g/cm3
- Melting Point:
- 207 °C
- Boiling Point:
- 430.2 °C at 760 mmHg
- Flash Point:
- 214 °C
- Appearance:
- White crystalline solid
- Hazard Symbols:
Xi- Risk Codes:
- 43
- Safety Description:
- 28-36/37 Details
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Chemistry
IUPAC Name: 2-Amino-5-(ethylamino)-5-oxopentanoic acid
Synonyms: L-glutamine, N-ethyl- ; N-ethyl-L-glutamine ; (2S)-2-Amino-5-(ethylamino)-5-oxopentanoic acid ; L-Theanine ; N(5)-ethyl-L-glutamine ; N5-Ethyl-L-glutamine
Product Categories: Amino ACIDS SERIES;Amino Acids 13C, 2H, 15N;Amino Acids;Biochemistry;non-Proteinorganic Amino Acids;Nutritional Supplements;Functional Products;Amino Acids & Derivatives;Chiral Reagents
Molecular Structure of L-Theanine (CAS NO.3081-61-6): 
Molecular Formula of L-Theanine (CAS NO.3081-61-6): C7H14N2O3
Molecular Weight of L-Theanine (CAS NO.3081-61-6): 174.20
CAS NO: 3081-61-6
EINECS : 221-379-0
Mol File: 3081-61-6.mol
Index of Refraction: 1.492
Surface Tension: 48.2 dyne/cm
Density: 1.171 g/cm3
Flash Point: 214 °C
Enthalpy of Vaporization: 75.19 kJ/mol
Boiling Point: 430.2 °C at 760 mmHg
Vapour Pressure: 1.32E-08 mmHg at 25°C
Melting point: 207°C
Refractive index : 8 ° (C=5, H2O)
Storage temp: Store at 0-5°C
Appearance:White Crystalline Solid
Uses
L-Theanine (CAS NO.3081-61-6) is a non-protein amino acid mainly found naturally in the green tea plant. It may have activity in modulating the metabolism of cancer chemotherapeutics agents
Production
Heat L-glutamic acid under high pressure , producing Pyrrolidone carboxylic acid. making into nantokite and then add Anhydrous ethylamine, and then heated under high pressure,obtaining L-Theanine (CAS NO.3081-61-6) .
Safety Profile
Hazard Codes 
Xi
Risk Statements 43
R43:May cause sensitization by skin contact.
Safety Statements 28-36/37
S28:After contact with skin, wash immediately with plenty of soap-suds.
S36/37:Wear suitable protective clothing and gloves.