Wholesale High Purity Natural Quercetin 95% HPLC 98% UV - Premium Supplier from China Factory Manufacturers, Manufacturer

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Product NameQuercetin
Botanical SourceSophora Japonica
AppearanceYellow powder or granular form, slightly soluble in water.
Specification95% HPLC, 98% UV Quercetin
Related ProductsLutin 95%; 98%; 10:1
Shelf Life2 years; store in a dry place away from sunlight.
Free SampleAvailable
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Quercetin is a premium botanical extract sourced from Sophora Japonica, a plant known for its health benefits. This yellow powder or granular product is slightly soluble in water and is available in high specifications of 95% HPLC and 98% UV. As a leading supplier and factory based in China, we pride ourselves on providing high-quality Quercetin to meet diverse customer needs. For those interested, we offer free samples to ensure satisfaction with our products. With a shelf life of 2 years, proper storage conditions are recommended to maintain optimal quality. Explore our related products, including Lutin, and experience the excellence of Chinese botanical extracts.

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Product Description

Product Description
Quercetin 1
Quercetin is a naturally occurring flavonoid widely found in nature and belongs to the group of plant polyphenols. Quercetin can be found in onions, flos sophorae, apples, grapes, citrus fruits, as well as many plants and traditional herbs. Because of its natural origin and biological activity, quercetin has become an important compound studied in the field of plant extracts and nutritional science.
We offer two premium grades of quercetin to meet diverse formulation needs:
Assay 95% HPLC 98% UV
Specification Dihydrate (9.0% ~ 12.0%) Anhydrate (≤4.0%)
Appearance Powder Granular
All products are tested to meet international quality standards, with flexible MOQ and bulk supply available.
Certificate of Analysis
Characters Specifications Results
Appearance Yellow, crystalline powder Yellow, crystalline powder
Solubility Practically insoluble in water; Soluble in aqueous alkaline sol. Complies
Melting point 305–315℃ 310℃
Identification Must positive Complies
Tests
Loss on drying 9.0–12.0% 9.12%
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
Particle Size 100% pass 80 mesh Complies
Assay (on dry product) ≥95% HPLC
≥98% UV
96.38%
99.33%
Microbiological Test
Total plate count ≤1000 CFU/g Complies
Yeast & Mould ≤100 CFU/g Complies
E. Coli Absent Absent
Pseudomonas aeruginosa Absent Absent
Key Advantages
🌿 Natural Plant Extract
Extracted from high-quality natural plants, non-GMO, safe and reliable for food, supplement, and cosmetic applications.
🏆 High Purity & High Quality
Strict production process ensures high purity, low heavy metals, low microbial count, and compliance with export standards such as USP and EP.
⚡ Strong Antioxidant Activity
Powerful antioxidant properties help protect cells from oxidative stress and support overall immune health.
🔬 Stable & Easy to Formulate
Good flow, solubility and stability make quercetin ideal for capsules, tablets, powders, drinks and topical products.
📋 Global Compliance & Certifications
Supports complete certificates: COA, MSDS, ISO, FDA, HALAL, KOSHER upon request.
🏭 Factory Direct Supply
Competitive price, in-stock supply, accept custom specifications available.
Functions
  • 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.
Quercetin 1
Quercetin 2
Packing
Weight Packing Method
1kg Bag/kg, box outside (double plastic bag + aluminum foil bag inside)
10kgs, 25kg or more By drums or carton (2 layers plastic bag inside)
Packaging
Delivery
Weight Delivery Method Delivery Time Destination
1kg – 25kgs EMS, DHL, UPS, FedEx 3–7 days Door to door
25kgs – 100kgs DHL, FedEx, by Air 3–7 days Door to door (to Airport by Air)
More than 100kgs By Air 3–7 days Door to Airport
By Sea 10–35 days Door to port
Logistics
Logistics
Frequently Asked Questions
Q What is the difference between Quercetin 95% HPLC and 98% UV grades?
The 95% HPLC grade is a dihydrate form with 9.0%–12.0% moisture content and comes as a fine powder, while the 98% UV grade is an anhydrous form with ≤4.0% moisture and comes in granular form. Both grades meet strict quality standards and are suitable for different formulation requirements.
Q What certifications are available for this quercetin product?
We can provide a full set of certificates upon request, including COA (Certificate of Analysis), MSDS, ISO, FDA, HALAL, and KOSHER certifications, to support regulatory compliance in global markets.
Q What is the minimum order quantity (MOQ)?
We offer flexible MOQ to suit both small-scale and bulk requirements. Sample orders starting from 1kg are accepted. Please contact us for specific MOQ details and bulk pricing.
Q How is quercetin packaged for shipping?
For 1kg orders, quercetin is packed in a double plastic bag with an aluminum foil inner bag, placed inside a box. For larger quantities (10kg, 25kg or more), it is packed in drums or cartons with two layers of plastic bags inside to ensure product integrity during transit.
Q What are the main applications of quercetin?
Quercetin is widely used in health care products (blood pressure support, immune enhancement), pharmaceuticals (cough relief, heat-clearing), cosmetics (anti-inflammatory, antioxidant), and animal feed additives to improve livestock production performance and product quality.
Q What shipping methods are available and how long does delivery take?
For small orders (1–25kg), we ship via EMS, DHL, UPS, or FedEx with a delivery time of 3–7 days door to door. For larger shipments, air freight takes 3–7 days and sea freight takes 10–35 days depending on the destination port.

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