| Product Name |
Quercetin |
|---|---|
| Botanical Source | Sophora japonica (Sophora flower bud) |
| CAS No. | 117-39-5 |
| MF | C15H10O7 |
| MW | 302.24 g/mol |
| Specification | Quercetin ≥95% (HPLC) |
| Appearance | Yellow crystalline powder |
| Packing | 1kg/aluminum foil bag, 25kg/drum or customized packaging |
| Applications |
Antioxidant, immune booster, cardiovascular support, anti-inflammatory |
Quercetin is a natural flavonoid compound found in many fruits, vegetables, and plants, particularly rich in Sophora japonica flower buds. Known for its powerful antioxidant, anti-inflammatory, and immune-modulating properties, quercetin is widely used in dietary supplements, functional foods, cosmetics, and pharmaceuticals.
Potent antioxidant: Neutralizes free radicals and protects cells
Supports cardiovascular health: Improves vascular function & circulation
Immune system booster: Enhances natural defense against infections
Anti-inflammatory activity: Helps reduce chronic inflammation
Potential anti-aging effects: Supports healthy aging & cellular function
High purity ≥95% (HPLC)
Extracted from natural Sophora japonica buds
Non-GMO, Vegan, Allergen-Free
Produced under GMP, ISO, HACCP certifications
Stable global supply with COA & third-party testing
| Specification | Qualified Testing Result | Actual Testing Result | Test Method |
|---|---|---|---|
| Part 1. Physical & Chemical Analysis | |||
| Appearance | Yellow crystalline powder | Complied | Visual |
| Odor & Taste | Characteristic | Complied | Organoleptic |
| Assay (HPLC) | ≥95.0% | 96.2% | HPLC |
| Melting Point | 305–315°C | 312°C | USP |
| Loss on Drying | ≤5.0% | 2.1% | USP <731> |
| Residue on Ignition | ≤0.5% | 0.08% | USP <281> |
| Part 2. Heavy Metal Analysis & Chemical Control | |||
| Total Heavy Metals | ≤10 ppm | Complied | AAS |
| Lead (Pb) | ≤3 ppm | <1 ppm | ICP-MS |
| Arsenic (As) | ≤1 ppm | <0.1 ppm | ICP-MS |
| Cadmium (Cd) | ≤1 ppm | <0.05 ppm | ICP-MS |
| Mercury (Hg) | ≤0.1 ppm | <0.01 ppm | ICP-MS |
| Part 3. Microbiological Analysis & Control | |||
| Total Plate Count (cfu/g) | ≤1,000 | <100 | USP <61> |
| Yeast & Mold (cfu/g) | ≤100 | <10 | USP <61> |
| E. coli | Negative | Negative | USP <62> |
| Salmonella (per 25 g) | Negative | Negative | USP <62> |
Dietary supplements for immune & cardiovascular support
Functional beverages & health foods
Anti-aging & antioxidant formulations
Cosmetics & skincare (anti-inflammatory, brightening)
Pharmaceutical research & applications
1kg/aluminium foil bag, with two plastic bags inside.
Gross Weight: 1.5kg Size: 18cmxH27cm
25kg/fiber drum, with two plastic bags inside.
Gross Weight: 28kg Size: 42cmxH52cm Volume: 0.0625mg/Drum.
DHL / FEDEX / EMS / E-PACKET / BY AIR / BY SEA
1. ≤50kg, Express delivery(DHL /FEDEX) recommended, usually called as DDU service;
2. ≤500kg, Air shipping recommended, usually called as CIF service;
3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
4. For high value products, please select air shipping and express delivery for safe.
We will contact you within 1 working day, please pay attention to the email with the suffix “forrest@oriherb.com”.
