📍 Xi'an High-tech Zone, Shaanxi, China
🕐 Mon–Fri 9:00–18:00 (GMT+8)
High Purity Natural Ingredients · GMP Certified · COA per Batch
Product Name: Sophora japonica extract Synonym Name: Quercetin dihydrate Latin Origin: Sophora japonica L Part of used: Flower buds Specifications: Quercetin dihydrate 95%,98% Appearance: Yellow fine
| A. IR | IR spectrum is concordant with spectrum of Quercetin RS . |
|---|---|
| B. UV | The absorptivity at the maximum at 371nm is 75.5–80.0 . |
| C. HPLC | Retention time of the sample matches with the standard in HPLC purity test. |
| Quercetin dihydrate (HPLC) | ≥95.00 % |
| Kaempferol | ≤0.50% |
| Individual impurities | ≤0.10% |
| Storage | Store in cool, dry place, away from light and moisture. Keep sealed. |
| Shelf Life | 24 months from production date when stored properly. |
| Packaging | 1 kg/bag (double aluminium foil bag) · 25 kg/drum (fibre drum + PE inner bag) |
Every batch manufactured in our GMP-certified facility in Xi'an, China, and tested in our in-house analytical laboratories before dispatch.
The following documents are provided with every shipment or on request:
