Overview
Fisetin is a naturally-occurring flavonol (3,3',4',7-tetrahydroxyflavone) widely studied for its antioxidant activity. Our fisetin is extracted from the heartwood of Cotinus coggygria Scop. and purified by recrystallization to ≥98% HPLC, suitable for dietary supplement R&D, cosmetic raw-material development and analytical reference work.
Key facts
- CAS Number — 528-48-3
- Molecular Formula — C15H10O6
- Molecular Weight — 286.24
- Appearance — Yellow crystalline powder
- Botanical Source — Cotinus coggygria Scop., heartwood
Typical specification
| Parameter | Specification | Method |
|---|---|---|
| Assay (Fisetin) | ≥98.0% | HPLC |
| Loss on Drying | ≤2.0% | USP <921> |
| Residue on Ignition | ≤1.0% | USP <281> |
| Heavy Metals (Pb, As, Cd, Hg) | ≤10 ppm | ICP-MS |
| Solvent Residues | Complies with ICH Q3C | GC |
| Total Plate Count | ≤1,000 CFU/g | USP <61> |
| Yeast & Mold | ≤100 CFU/g | USP <62> |
| E. coli / Salmonella | Absent | USP <62> |
Applications
- Dietary supplements — added to formulations alongside other flavonols such as quercetin and rutin
- Cosmetics — used in topical antioxidant formulations
- Analytical reference — research-grade material for HPLC method development
Commercial
- MOQ — 1 kg
- Lead time — 7–15 business days from order confirmation
- Packaging — 1 kg aluminum bag · 25 kg fiber drum (PE inner liner)
- Storage — Sealed container, cool, dry, protected from light
- Shelf life — 24 months unopened
For batch COA, TDS or MSDS, please request via the inquiry form.
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
