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    l theanine powder


    CAS 3081-61-6


    l theanine amino acid

  • Product Name
  • Cas No.
  • Molecular Formular
  • Molecular Weight
  • Place of Origin
  • Brand Name
    Premium Ingredient
  • Certification
  • Minimum Order Quantity
  • Packaging Details
  • Delivery Time
    1-2 WEEKS
  • Payment Terms
    TT against copy of documents、L/C
  • Supply Ability




Products Description

Theanine is an amino acid found in green tea.Theanine may treate anxiety and high blood pressure, for preventing Alzheimer’s disease, and for making cancer drugs more effective.


CAS NO.: 3081-61-6
Molecular Formula: C7H14N2O3
Molecular Weight: 174.2


Item specification
Appearance White crystalline powder

Specific rotation(a)D20

(C=1 , H2O )

+7.7o to +8.5o
Solubility (1.0g/20ml H2O) Clear Colorless
Melting Point ( ℃) 211-216 ℃
Chloride(C1) Not more than 0.02%
Iron(Fe) Not more than 10ppm
Heavy metals( Pb ) Not more than 10ppm
Arsenic(As2O3 ) Not more than 4ppm
Loss on drying( 100 ℃ 3h) Not more than 0.50%
Residue on ignition Not more than 0.2%
Assay 98.0-102.0%
PH 5.0~6.0


Basic Info

Product Name:


Other Name:

L-Glutamine,N-ethyl-;Glutamine,N-ethyl-,L-;N-Ethyl-L-glutamine;L-Theanine;Theanine;Theanin;Suntheanine;NSC 21308;Nγ-Ethyl-L-glutamine;Suntheanine CG 100;(2S)-2-Amino-4-(ethylcarbamoyl)butanoic acid;(2S)-2-Azaniumyl-5-(ethylamino)-5-oxopentanoate;(S)-2-Amino-5-(ethylamino)-5-oxopentanoic acid

CAS No.:


Molecular Formula:


Molecular Weight:


Exact Mass:


EC Number:


NSC Number:













1.171 g/cm3

Melting Point:

217-218 °C (decomp)

Boiling Point:

427.1ºC at 760 mmHg

Flash Point:


Refractive Index:

8 ° (C=5, H2O)

Water Solubility:

Insoluble in ethanol and ether

Storage Conditions:

Store at 0-5ºC

Vapor Pressure:

5.0X10-8 mm Hg at 25 deg C (est)


None (no odor)


Astringent, sweet


pH of 5-6 (1% solution)


Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.


Conditions for safe storage, including any incompatibilities

RECOMMENDED STORAGE METHODS: Lined metal can, Lined metal pail/drum. Plastic pail. STORAGE REQUIREMENTS: Store in original containers. Keep containers securely sealed.


Amino Acids
Product name Cas No. Product name Cas No.
D-aspartic acid 1783-96-6 DL-Valine 516-06-3
taurine 107-35-7 DL-Leucine 328-39-2
l-lysine base 56-87-1 DL-Threonine 80-68-2
L-Methionine 63-68-3 DL-Methionine 59-51-8
L-Threonine 72-19-5 DL-Alanine 302-72-7
L-Pyroglutamic acid 98-79-3 Glycine 56-40-6
L-Cystine 56-89-3 L-Glutamine 56-85-9
L-Tyrosine 60-18-4 L-Phenylalanine 63-91-2
L-Leucine 61-90-5 L-Proline 147-85-3
L-Isoleucine 73-32-5 L-Histidine Hcl 5934-29-2
L-Valine 72-18-4 L-Histidine 71-00-1
L-Citrulline 372-75-8 L-Tryptophan 73-22-3
L-Arginine 74-79-3 N-Acetyl-L-Tyrosine 537-55-3
L-Arginine monohydrochloride 1119-34-2 N-Acetyl L-Cysteine 616-91-1
L-Glutamic Acid 56-86-0 Creatine Monohydrate 6020-87-7
L-Cysteine Hcl Mono 7048-04-6 Creatine Anhydrous 57-00-1
L-Cysteine Hcl Anhy 52-89-1 L-Aspartic Acid 56-84-8
L-Cysteine 52-90-4 L-Alanine 56-41-7
D-Leucine 328-38-1 L-Theanine 3081-61-6
L-Lysine monohydrochloride 657-27-2 BCAA(Branched Chain Amino Acids)



Packing & Delivery

L-Theanine 0



Our Company

L-Theanine 1

Premium Ingredient Co., Ltd has been producing and distributing amino acids, vitamins, nutrition and food additives for decades, severing for more than 100 clients in the fields of food, beverage, diet supplements, cosmetic, pharmaceutical and animal feeding, exporting to dozens of countries. We supply these products only from the first class Chinese factories with over 10 years producing experiences.


With more than 10 years working experience, Premium Ingredient Co., Ltd offers not only quality products, but also good service, quick response, delivery in time, share up-to-the minute market information, supply one-stop-shop solutions.


We have established a long-term, extensive and deep cooperation with the source to ensure sufficient supplies, stable prices, and rapid shipment. Our 3rd party documents include ISO9001, ISO14001, HACCP, HALAL, KOSHER, GMP, FAMI-QS.


We expect you sending email or coming for negotiation.



Our Factory

L-Theanine 2

L-Theanine 3

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Our Research

L-Theanine 5



Our Certifications

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Q: How long is your delivery time?

A: Generally it is 1-2 weeks..


Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.


Q: What's your MOQ ?

A: For the high value product, our MOQ starts from 25kg.


Q: Is there a discount ?

A: Yes, for larger quantity, we always support with better price.


Q: How to confirm the Product Quality before placing orders ?

A: Our products conforms to the internation standard, such as USP, CP, FCC. We can also send you the samples for test. After you confirmed the samples, we will move to the next step for cooperation.


Q: How to start orders or make payments ?

A: You can send our your Purchase order ( if your company has ), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.


Q: How do you treat quality complaint ?

A: We tested each batch before delivery and only qualified product will be delivery, in case you find any problem about the quality when you received and tested, send email to us, and enclose the photo of the products and 3rd party test reports, We negotiate to resolve these issues, recall or exchange goods, or compensate.


Q: why we choose you ?

A : We ensure ingredient purity, on-time delivery, process efficiency and the technical documents you require.

(1) quality: meet even exceed what you expect.

(2) prices: competitive

(3) service: one stop shop solution, respond soon, delivery fast, share the market information, share the new application of the product.