Fisetin
CAS 528-48-3
4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,7-dihydroxy-
This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.
Why supply is unknownProduction is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 293299 · basket
These shares come from HS customs code 293299, which covers 229 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- United Kingdom
- Japan
- Germany
- Spain
- Israel
- Canada
- Brazil
- Vietnam
- Ukraine
- New Zealand
- Belgium
- Mexico
- Singapore
- Taiwan
- South Korea
- Sweden
- South Africa
- Egypt
- Indonesia
- Lithuania
- Finland
- Hungary
- Czech Republic
- Hong Kong
- Malaysia
- Slovakia
- Australia
- Russia
- Jordan
- Latvia
- Argentina
- Slovenia
- Malta
- Poland
- Denmark
- Austria
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
26 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $2.16 | 100 g | 98% |
| BLD Pharmatech GmbH | Germany | $3.85 | 100 g | 95% |
| Combi-Blocks, Inc. | United States | $5.00 | 100 g | 95% |
| BLD Pharmatech Ltd. | China | $5.12 | 25 g | 95% |
| A2B Chem LLC | United States | $5.33 | 100 g | 96% |
| AA BLOCKS | United States | $5.63 | 100 g | 96% |
| AK Scientific Specialized | United States | $8.00 | 25 g | 95% |
| AK Scientific, Inc. | United States | $13.36 | 25 g | 98% |
| Fulfilled by Molport | Latvia | $20.00 | 250 mg | 98% |
| AstaTech (2 weeks) | United States | $30.92 | 25 g | 95% |
| Apexbio Technology LLC | United States | $105.00 | 1 g | 98% |
| MedChemExpress MCE | Sweden | $137.94 | 1 g | 99.99% |
| Angene International Limited | United States | $140.00 | 1 g | 98% |
| Interbioscreen | Hong Kong | $211.00 | 10 g | 95% |
| Cayman Europe | Estonia | $220.15 | 1 g | 90% |
| Molnova | China | $370.00 | 100 mg | 99% |
| MedKoo Biosciences, Inc | United States | $375.00 | 2 g | 98% |
| TargetMol Chemicals | China → United States | $410.00 | 100 mg | 99.05% |
| Chengdu Biopurify Phytochemicals Ltd. | China | $1300.00 | 100 mg | 98% |
| ChemNorm | China | $1450.00 | 20 mg | 98% |
| ChemFaces | China | $1500.00 | 20 mg | 98% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| Key Organics Ltd. | United Kingdom | $6900.00 | 10 mg | 97% |
| Vitas M Chemical Limited | Hong Kong | $9000.00 | 10 mg | 90% |
| Princeton BioMolecular Research (SC) | United States | $10500.00 | 10 mg | 90% |
| AnalytiCon Discovery - a Division of BRAIN Biotech AG | Germany | $73652.70 | 100 mg | 85% |
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Fisetin (CAS 528-48-3) https://chemicalindependence.com/chemical/528-48-3/ EPA TSCA Inventory: CAS 528-48-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293299 for CAS 528-48-3. Reporting year: 2024. https://usatrade.census.gov/