High-Quality High Purity Natural Quercetin HPLC 95% UV 98% Manufacturers, Manufacturer

Product name Quercetin
Botanical Source Sophora Japonica
Apperance Yellow powder or granular, slightly soluble in water.
Specification 95%HPLC, 98%UV Quercetin
Related products Lutin 95% ; 98%   10:1
Shelf time 2 years,keep away sunlight, keep dry
Free sample available

Product Description

Product Description

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.
Quercetin 1

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 < 1.5 ppm Negative
Lead < 3.0 ppm Complies
Mercury < 0.1 ppm Complies
Partical Size 100% pass 80 mesh Complies
Assay (on dry product) ≥95%HPLC / ≥98%UV 96.38% / 99.33%
Microbiological test
Total plate count ≤1000CFU/g Complies
Yeast & Mould ≤100CFU/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 3-7days 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

Logistics

Logistics

FAQ

Q1: What is Quercetin?
Quercetin is a natural flavonoid compound found in many plants, fruits, and vegetables. It is widely used in dietary supplements and functional nutrition products.
Q2: What are the benefits of Quercetin?
Quercetin is commonly used in antioxidant and immune-support supplement formulations.
Q3: What Quercetin specifications do you supply?
In stock with 95% HPLC and 98% UV specifications. Customized specifications are also available.
Q4: What is your supply capacity for Quercetin?
Annual supply capacity: 5 tons, with complete documentation including COA, MSDS, and TDS provided.
Q5: What are the storage conditions for Quercetin?
Quercetin should be stored in a cool, dry place away from moisture and direct sunlight to maintain product quality.
Q6: Do you provide Quercetin samples?
Yes, free samples are available for product testing and evaluation.

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