Buy High Purity Natural Quercetin 95% HPLC UV 98% - Trusted China Suppliers & Factory Direct Offer Suppliers, Factory

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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 away from sunlight and keep dry.
Free SampleAvailable upon request.
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Our Quercetin is sourced from the premium Sophora Japonica plant, ensuring high-quality and effective supplementation. This yellow powder is offered in 95% HPLC and 98% UV specifications, making it one of the finest Quercetin products on the market. Being a trusted China supplier, we provide reliable access to natural solutions, with the capability to deliver directly from our factory. Experience the benefits of Quercetin while enjoying the convenience of available free samples. Maintain its efficacy by storing it properly in a cool, dry place away from sunlight. Explore our related products, including various Lutin options, to enhance your health product offerings.

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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 (FAQ)
Q What is quercetin and where does it come from?
Quercetin is a naturally occurring plant flavonoid and polyphenol found in many fruits, vegetables, and herbs including onions, apples, grapes, citrus fruits, and flos sophorae. Our quercetin is extracted from high-quality, non-GMO plant sources.
Q What grades of quercetin do you offer?
We offer two premium grades: 95% HPLC (dihydrate form, 9.0–12.0% moisture) available as powder, and 98% UV (anhydrate form, ≤4.0% moisture) available as granules. Both grades meet international quality standards including USP and EP.
Q What certifications and documents are available?
We can provide a full set of compliance documents upon request, including Certificate of Analysis (COA), MSDS, ISO, FDA registration, HALAL, and KOSHER certificates. Please contact us to request specific documentation.
Q What is the minimum order quantity (MOQ)?
We offer flexible MOQ to accommodate both small-scale and bulk orders. Starting from 1 kg for sample orders, with bulk supply available in 25 kg drums or cartons. Please contact us directly for custom quantity requirements and pricing.
Q How is quercetin packaged and shipped?
Small orders (1 kg) are packed in aluminum foil bags with double plastic inner bags and outer carton box. Larger orders (10 kg, 25 kg or more) are shipped in drums or cartons with two layers of inner plastic bags. Delivery is available via EMS, DHL, UPS, FedEx, air freight, or sea freight depending on order weight.
Q What are the main applications of quercetin?
Quercetin is widely used across multiple industries: as a dietary supplement to support immune health and reduce blood pressure; in pharmaceuticals for cough relief, asthma management, and detoxification; in cosmetics for its anti-inflammatory and antioxidant properties; and in animal feed to improve livestock production performance and meat/egg quality.

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