For B2B partners requiring detailed technical documentation. A comprehensive, batch-specific Certificate of Analysis (COA) will be provided promptly upon request.

Parameter	Specification	Test Method
Identity
Product Name	L-Theanine	-
CAS No.	3081-61-6	-
Molecular Formula	C₇H₁₄N₂O₃	-
Key Specifications
Purity (HPLC)	≥ 99.0%	HPLC
Appearance	White to off-white crystalline powder	Visual Inspection
Loss on Drying	≤ 0.5%	Gravimetric method
Specific Rotation	+7.0° to +9.0° (c=1 in H₂O)	Polarimetric method
Residue on Ignition (Sulfated Ash)	≤ 0.1%	Gravimetric method
Microbiological Quality
Total Aerobic Microbial Count	≤ 1,000 CFU/g	USP <61> / ISO 4833-1
Total Combined Yeasts and Molds	≤ 100 CFU/g	USP <61> / ISO 21527-2
Escherichia coli	Absent in 1g	USP <62>
Salmonella spp.	Absent in 10g	USP <62>
Heavy Metals & Contaminants
Lead (Pb)	≤ 1.0 mg/kg	ICP-MS
Arsenic (As)	≤ 0.5 mg/kg	ICP-MS
Cadmium (Cd)	≤ 0.5 mg/kg	ICP-MS
Mercury (Hg)	≤ 0.1 mg/kg	ICP-MS
Packaging & Services
Minimum Order Quantity (MOQ)	1 kg	-
Free Sample	Available (10-20g/bag)	-
Standard Packaging	1 kg/bag, 5 kg/bag, 25 kg/drum	-
Shelf Life & Storage	24 months in a cool, dry place in original, unopened packaging	-
Custom Services	OEM, ODM, Private Label, Custom Blending	-

Note: The specifications above define our standard L-Theanine Powder product profile. We also provide customization options—such as adjustments to purity levels and particle size distribution—to meet specific formulation requirements. Contact us to request the full Certificate of Analysis (COA) for detailed, batch-specific data and supporting compliance documentation.

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L-Theanine Powder

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