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	Fisetin Powder	-
CAS No.	528-48-3	-
Molecular Formula	C15H10O6	-
Other Names	3,3',4',7-Tetrahydroxyflavone	-
Key Specifications
Purity (HPLC)	≥ 98.0%	HPLC
Appearance	Yellow to brownish-yellow fine powder	Visual Inspection
Particle Size	95% passing 80 mesh	Sieve Analysis
Loss on Drying	≤ 5.0%	Gravimetric Method
Residue on Ignition	≤ 0.5%	Gravimetric Method
Microbiological Quality
Total Plate Count	≤ 1,000 CFU/g	USP <61>
Yeast & Mold	≤ 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
Arsenic (As)	≤ 1.0 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) for qualified inquiries	-
Standard Packaging	1 kg/bag, 5 kg/bag, 25 kg/drum	-
Shelf Life & Storage	24 months in a cool, dry place and away from direct light in original, sealed packaging	-
Custom Services	OEM, ODM, Private Label, Custom Blending	-

Note: The specifications above define our standard Fisetin 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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