(5) CAS number: 520-27-4 ; molecular formula: C28H32O15; molecular weight: 608.545Why us?
● Made in China, using own planted raw material to make premium products
● Fast lead times
● 9 – step quality control process
● Highly experienced operations and quality assurance staff
● Stringent in-house testing standards
● Warehouse both in USA and China, fast response
Typical COA: Specification 90%HPLC
| Analysis | Specification | Results | Method |
| Anhydrous substance | 90.0-102.0% | 93.4% | HPLC |
| Hesperidin | ≤4.0% | 3.2% | HPLC |
| Acetoisovanillone | ≤0.5% | 0.07% | HPLC |
| Isorhoifin | ≤3.0% | 0.93% | HPLC |
| Linarin | ≤3.0% | 1.1% | HPLC |
| Diosmetin | ≤2.0% | 0.46% | HPLC |
| Unspecified impurities, for each impurity | ≤0.4% | 0.25% | HPLC |
| Total | ≤8.5% | 6.2% | HPLC |
| Appearance | Greyish-yellow or light yellow hygroscopic powder. | Light yellow hygroscopic powder. | Visual |
| Solubility | Practically insoluble in water, soluble in dimethyl sulphoxide, practically insoluble in ethanol (96%). It dissolves in dilute solutions of alkali hydroxides. | Complies | - |
| Odor & Taste | Characteristic | Complies | Organoleptic |
| Residual Solvents | Methanol≤3000ppm | Complies | CP2015 |
| Ethanol≤5000ppm | |||
| Pyridine≤200ppm | |||
| Loss on drying | ≤6.0% | 2.1% | CP2015 |
| Sulphated ashes | ≤0.2% | 0.1% | CP2015 |
| Heavy Metals | |||
| Total | ≤10ppm | Complies | CP2015 |
| Microbiological Control | |||
| Total Plate Count | NMT1000cfu/g | Complies | CP2015 |
| Yeast & Mold | NMT100cfu/g | Complies | CP2015 |
| E.Coli | Negative | Complies | CP2015 |
| Packing and Storage | |||
| Packing | 25kgs/drum. Packing in paper-drums and two plastic-bags inside. | ||
| Storage | Store in a well-closed container away from moisture, sun light, or heat. | ||
Packing and Storage
Packing: 25kgs/drum. Packing in paper-drums and two plastic-bags inside. Storage:Store in a well-closed container away from moisture, sun light, or heat. Shelf Life:2 years.
