Wholesale High Purity Natural Quercetin 95% HPLC & 98% UV from China Suppliers and Factory Company, Exporters

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Product NameQuercetin
Botanical SourceSophora Japonica
AppearanceYellow powder or granular form, slightly soluble in water.
Specifications95% HPLC, 98% UV Quercetin
Related ProductsLutin 95%; 98% - 10:1
Shelf Life2 years; store away from sunlight and keep dry.
Free SampleAvailable upon request.
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Quercetin is a premium product sourced from **Sophora Japonica**, offering a high concentration of active ingredients at **95% HPLC** and **98% UV** specifications. This yellow powder is carefully processed and is slightly soluble in water, making it suitable for various applications. As a leading manufacturer, our **factory** in **China** ensures the highest quality standards are met. We offer competitive pricing and reliable supply, making us trusted **suppliers** of Quercetin in the market. For those interested, we also provide free samples for testing purposes. Ensure your products stand out with our superior Quercetin!

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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 ≤10 ppm 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
  • Health care products: reduce blood pressure and enhance immunity
  • Pharmaceutical field: relieving cough, relieving asthma, clearing heat and detoxifying
  • Cosmetics: anti-inflammatory, antioxidant
  • 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
1 kg Bag/kg, box outside (double plastic bag + aluminum foil bag inside)
10 kgs, 25 kg or more By drums or carton (2 layers plastic bag inside)
Packaging
Delivery
Weight Delivery Method Delivery Time Destination
1 kg – 25 kgs EMS, DHL, UPS, FedEx 3–7 days Door to door
25 kgs – 100 kgs DHL, FedEx, by Air 3–7 days Door to door (to Airport by Air)
More than 100 kgs By Air 3–7 days Door to Airport
By Sea 10–35 days Door to port
Logistics
Logistics
Frequently Asked Questions
What is the difference between 95% HPLC and 98% UV quercetin?
The 95% HPLC grade is a dihydrate form (moisture 9.0%–12.0%) available as powder, while the 98% UV grade is an anhydrate form (moisture ≤4.0%) available as granular. Both meet strict quality standards and are suitable for different formulation needs.
What certifications are available for your quercetin products?
We can provide COA, MSDS, ISO, FDA registration documents, HALAL, and KOSHER certifications upon request to support your regulatory and compliance requirements.
What is the minimum order quantity (MOQ)?
We offer flexible MOQ starting from 1 kg for sample testing, with bulk supply available in 10 kg, 25 kg drums or cartons. Custom quantities and specifications are also accepted.
How is quercetin packaged for shipping?
For 1 kg orders, product is packed in double plastic bags with an aluminum foil inner bag, placed in a box. For 10 kg, 25 kg or larger quantities, drums or cartons with 2 layers of plastic bag inside are used to ensure product integrity during transit.
What are the main applications of quercetin?
Quercetin is widely used in health care products to support immunity and blood pressure, in the pharmaceutical field for cough and asthma relief, in cosmetics for anti-inflammatory and antioxidant effects, and in animal feed to improve livestock performance and product quality.
How long does delivery take and what shipping methods are available?
For orders of 1–100 kg, delivery by EMS, DHL, UPS, or FedEx takes 3–7 business days door-to-door. For orders over 100 kg, air freight takes 3–7 days to destination airport, and sea freight takes 10–35 days to destination port.

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