Description

D-Theanine is a premium, naturally occurring amino acid derivative, specifically the D-enantiomer of theanine. It is highly valued for its unique ability to promote a state of calm alertness and focus without drowsiness, making it a sought-after ingredient for cognitive and mood support formulations. This high-purity compound is essential for manufacturers in the nutraceutical, dietary supplement, and functional food and beverage industries seeking to develop science-backed wellness products.

Application

• Dietary Supplements & Nootropics: A key active ingredient in capsules, tablets, and powders designed to support relaxation, improve focus, reduce stress, and enhance cognitive performance.
• Functional Foods & Beverages: Incorporated into teas, coffees, chocolates, chewing gum, and health drinks to add a calming, mood-modulating functional benefit.
• Pharmaceutical Intermediates: Serves as a chiral building block or intermediate in the synthesis of more complex pharmaceutical compounds targeting neurological pathways.
• Cosmecuticals: Used in topical formulations for its potential anti-stress and soothing properties on the skin, contributing to "anti-aging" or "calming" skincare products.
• Animal Nutrition: Applied in pet food and livestock supplements to promote calm behavior and well-being in animals.
• Research & Development: Utilized in biochemical and neuroscientific research to study its effects on neurotransmitter systems, particularly GABA and glutamate.

Basic Information

Product Name	D-Theanine
CAS No.	5822-62-8
Molecular Formula	C7H14N2O3
Molecular Weight	174.20 g/mol
Synonyms	D-γ-Glutamylethylamide; (R)-2-Amino-4-(ethylcarbamoyl)butyric acid; D-N-Ethylglutamine; (R)-N5-Ethyl-L-glutamine; Suntheanine® (branded form, typically L-Theanine); Theanine D-form; D-N5-Ethyl-L-glutamine; (2R)-2-Amino-5-(ethylamino)-5-oxopentanoic acid
EINECS	227-394-0

Quality Control

Our D-Theanine is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity verification, to ensure it meets stringent specifications for identity, potency, and purity. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, confirming compliance with relevant standards for nutraceutical and research use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Chiral Purity (HPLC)	≥ 99.0% D-Isomer
Loss on Drying	≤ 0.5%
Residue on Ignition (Sulfated Ash)	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH Q3C guidelines
Total Plate Count	< 1000 cfu/g
Yeast & Mold	< 100 cfu/g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.