L-Theanine

L-茶氨酸

Also known as: N-Ethyl-L-glutamine, Nγ-Ethyl-L-glutamine, N5-ethyl-L-glutamine, L-Glutamic acid γ-(ethylamide), Theanine, Suntheanine, L-γ-Glutamylethylamide, N5-Ethyl-L-glutamine, N-Ethyl-L-glutamin, (S)-2-Amino-4-(N-ethylcarbamoyl)butanoic acid, H-GLN(ET)-OH

CAS No.
3081-61-6
Jingsj CID
J-1990672-4
Molecular Formula
C7H14N2O3
Chinese Name
L-茶氨酸
Molecular Weight
174.198 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point207°C
Boiling Point430.2±40.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point214.0±27.3 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of L-Theanine?

3081-61-6

What are the molecular formula and molecular weight of L-Theanine?

C7H14N2O3, molecular weight 174.198 g/mol

Is L-Theanine hazardous?

Warning

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026