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	Phosphatidylserine (PS) Powder	-
CAS No.	51446-62-9	-
Molecular Formula	C13H24NO10P (for 1,2-diacyl-sn-glycero-3-phospho-L-serine)	-
Key Specifications
Purity (by HPLC)	≥ 20%, 50%, 70% (Standard Grade)	HPLC-UV
Appearance	Light Yellow to Yellow Fine Powder	Visual
Odor & Taste	Characteristic, mild (Nearly Odorless)	Organoleptic
Loss on Drying	≤ 3.0%	Gravimetric (105°C)
Residue on Ignition (Ash)	≤ 5.0%	Gravimetric
Solubility	Practically insoluble in water, soluble in organic solvents	-
Microbiological Quality
Total Aerobic Microbial Count	≤ 1,000 CFU/g	USP <61>
Total Yeast & Mold Count	≤ 100 CFU/g	USP <61>
Escherichia coli	Absent in 1g	USP <62>
Salmonella spp.	Absent in 10g	USP <62>
Staphylococcus aureus	Absent in 1g	USP <62>
Heavy Metals & Contaminants
Lead (Pb)	≤ 2.0 mg/kg	ICP-MS / AAS
Arsenic (As)	≤ 1.0 mg/kg	ICP-MS / AAS
Cadmium (Cd)	≤ 0.5 mg/kg	ICP-MS / AAS
Mercury (Hg)	≤ 0.1 mg/kg	ICP-MS
Residual Solvents	Complies with ICH Q3C	GC
Packaging & Services
Minimum Order Quantity (MOQ)	1 kg	-
Free Sample	Available (10-20g/bag for evaluation)	-
Standard Packaging	1 kg/bag, 5 kg/bag, 25 kg/fiber drum	-
Shelf Life & Storage	24 months sealed, store in a cool & dry place (below 25°C), protect from light and moisture.	-
Custom Services	Custom purity, particle size, OEM/Private label packaging, blend formulation support.	-

Note: The specifications above represent our standard Phosphatidylserine (PS) Powder profiles. Specifications, especially for purity (20%/50%/70%), can be adjusted based on your specific project needs. Contact us to request the full, batch-specific Certificate of Analysis (COA) for detailed compliance data and to discuss custom requirements.

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Phosphatidylserine (PS) Powder

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