| Customization: | Available |
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| Certification: | FDA, HACCP, Kosher |
| Assay Method: | HPLC, UV |
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Sophora rice, as one of the traditional Chinese medicine materials with the same origin as medicine and food, has a long history of medicinal use. Quercetin is one of the main active components in the extract of Sophora japonica. It is a flavonol compound widely distributed in the plant kingdom and has various biological activities. It has antioxidant, anti-inflammatory, anti-tumor, anti-thrombotic, anti-viral, anti-diabetic and cardiovascular protective effects.
| Product name | Quercetin |
| Plant sources | Sophora Japonica Extract |
| Apperance | Yellow powder |
| Specification | 95%HPLC, 98%UV Quercetin |
| Related products | Lutin 95% ; 98% 10:1 |
| Test method | HPLC/UV |
| Shelf time | 2 years,keep away sunlight, keep dry |
| Characters | Specifications | Results |
| Appearance | Yellow,crystalline powder | Yellow, crystalline powder |
Solubility |
Practically insoluble in water, Soluble in aqueous alkaline sol. |
Complies |
| Melting point | 305-315ºC | 310ºC |
| Identification | Must positive | Complies |
| Tests | ||
| Loss on drying | 9.0-12.0% | 9.5% |
| Sulphated ash | ≤0.5% | 0.3% |
| Heavy metal | ≤10ppm | Complies |
| Arsenic | < 1.0 ppm | Negative |
| Cadmium | < 1 ppm | Negative |
| Lead | < 3.0 ppm | Complies |
| Mercury | < 0.1 ppm | Complies |
| Partical Size | 100% pass 80 mesh | Complies |
| Assay(Quercetin Dihydrate) (on dry product) |
≥95%HPLC ≥98%UV |
96.4% 99.3% |
| Microbiological test | ||
| Total plate count | ≤1000CFU/g | Complies |
| Yeast & Mould | ≤100CFU/g | Complies |
| E .Coli | Absent | Absent |
| Pseudomonas aeruginosa | Absent | Absent |
1. Health care products: reduce blood pressure and enhance immunity
2. Pharmaceutical field: relieving cough, relieving asthma, clearing heat and detoxifying
3. Cosmetics: anti-inflammatory, antioxidant
4. Feed addition: improve the production performance of livestock and poultry, improve the quality of meat and eggs
| Weight | Packing method |
| 1kg | bag/kg, box outside (double plastic bag + Aluminum foil bag inside) |
| 10kgs,25kg or more | by Drums or carton (3 layers plastic bag inside) |
| Weight | Delivery mothod | Delivery time | Destination |
| 1kg-25kgs | EMS,DHL,UPS,Fedex,TNT | 3-7days | Door to door |
| 25kgs-100kgs | DHL,FedEx,by Air | 3-7days | Door to door (to Airport by Air) |
| more than 100kgs | by Air | 3-7days | Door to Airport |
| by Sea | 10-35days | Door to port |
1. How do you confirm product quality before order?
Free samples can be provided for your evaluation before ordering, and COA can be supplied of each batch products.
2. Can i get free samples?
Yes, Free samples 1-30grams available based on product value.
3. How long can i get my order?
Usually, the order will send within 1-3days after payment.
Shipping can by International Express(3-8days), by Air(3-5days), by Sea(8-35days) based on quantity and destination, or by your forwarder.
4. How is your customer service?
We provide 24-hour online service by Made in China, or by email, Skype, Whatsapp, telephone.
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