_1745918362135.webp)
Quercetin Dihydrate Powder
Active Ingredient: Quercetin
Specification: 95%/98%
Test Method: HPLC/UV
Appearance: Yellow Greenish Powder
Certifications: ISO9001,FSSC22000,cGMP,KOSHER,HALAL,VEGAN,FDA,ORGANIC(EU),ORGANIC(NOP)
Packing Size: 25kg/drum
Transportation: Courier, Air, Ocean
Delivery: Ready stock, Prompt and Secure Shipment
Our services:Customized production and packaging
- Product Description
Shaanxi Hongda Phytochemistry Co., Ltd. makes pharmaceutical-grade Quercetin Dihydrate Powder.
Shaanxi Hongda Phytochemistry Co., Ltd. is one of the leading manufacturers of high-purity quercetin dihydrate powder in China. With 24 years of experience in Plant Extract production and R&D, our quercetin raw material powder is extracted from the dried fruit of non-GMO sophora japonica trees. Utilizing proprietary high-speed countercurrent chromatography technology, we continuously expand our quercetin production scale, ensuring a purity of at least 98% (verified by HPLC), with some batches exceeding 99%.
Hongda boasts a product portfolio of nearly 3,000 natural product monomers. Our core product, quercetin, has been exported to countries such as Switzerland, Singapore, and Germany, and has obtained multiple international quality certifications. The entire production process guarantees product quality and safety, and our products are widely used in cardiovascular disease, anti-aging, and health care fields.
The primary advantages are
- High Purity: at least 98% quercetin dihydrate, with very low levels of heavy metals (less than 10 ppm) and microorganisms.
- cGMP, ISO 9001, and Halal/Kosher are all ways to show that something is of high quality.
- Stability: If you keep it in packaging that keeps out moisture and at a temperature between 2 and 8 degrees Celsius, it can survive for two years.
- Uses: beneficial for meals that are beneficial for you, supplements that combat free radicals, and supplements that fight inflammation
- Testing: Each batch comes with a Certificate of Analysis (COA) that shows how pure the HPLC and GC are.
Production Process:
- Ethanol extraction from Sophora japonica Extract
- Crystallization to separate the quercetin dihydrate form
- Multi-step purification to get rid of solvents and other contaminants
- Micronization (optional) to make it easier to dissolve
For premium quercetin bulk powder with full regulatory documentation, contact us at duke@hongdaherb.com. Custom particle sizes (10-100µm) and bulk packaging (1-25kg) available.
CAS Number | 117-39-5 | Density | 1.3616 (rough estimate) |
Molecular Formula | C15H10O7 | Molecular Weight | 302.24 |
Melting Point | 316.5 ℃ | Boiling Point | 363.28 ℃ (rough estimate) |
Solubleness | Insoluble in water; ≥15.1 mg/mL in DMSO; ≥3.28 mg/mL in ethanol | Test Method | HPLC |
Why should you buy our quercetin dihydrate powder?
Are you looking for reliable, high-quality, and compliant quercetin dihydrate powder and hoping quercetin can boost your health industry market? We use high-performance liquid chromatography (HPLC) to test our high-quality quercetin powder, guaranteeing a purity of 98% or higher. Due to its high purity, quercetin powder is ideal for formulation development, nutritional supplement tablets, and functional foods. Furthermore, we are FDA, ISO, and Halal/Kosher certifications, ensuring your products meet global standards and keeping costs to a minimum.
Main Advantages
- 98%+ Purity: Designed to have the best antioxidant and anti-inflammatory effects.
- Global Compliance: Meets heavy metal limitations set by the USP, EP, and pharmacopeia.
- Third-Party Verified: Each batch is checked for microorganisms, solvents, and stability.
- You can choose between micronized particles and blends that dissolve better.
- Bulk Solutions: 25kg drums or private-label packaging with minimum order quantities that can be changed.
Product Parameters
ITEMS | SPECIFICATION | ||
Content | Quercetin Dihydrate≥95% | ||
Content | Quercetin Dihydrate≥98% | ||
Identification | Consistent with quercetin control spectrum | ||
Identification | λmax =371 | ||
PHYSICAL CHARACTERISTICS | |||
Particle Size | NLT 95% Through 80 mesh | ||
Loss on Drying | NMT 12.00% | ||
Total Ash | NMT 0.50% | ||
Bulk Density | Between 14-21g/100ml | ||
CHEMICAL CHARACTERISTICS | |||
Heavy Metals(as Pb) | NMT 10ppm | ||
Arsenic (As) | NMT 2ppm | ||
Lead (Pb) | NMT 2ppm | ||
Cadmium(Cd) | NMT 1ppm | ||
Mercury(Hg) | NMT 0.1ppm | ||
MICROBIOLOGICAL CHARACTERISTICS | |||
Total Plate Count | NMT1000cfu/g | ||
Total Yeast & Mold | NMT100cfu/g | ||
E.Coli | Not Detected in(g) 10 | ||
Salmonella | Not Detected in(g) 25 | ||
Staphylococcus | Not Detected in(g) 10 | ||
Packing and Storage | Polyethylene bag with cardboard drum. 25kg net. Store in tight, light-resistant containers, avoid exposure to direct sunlight, moisture and excessive heat. | ||
Key Benefits
- Antioxidants: Stops free radicals that are associated to cell aging
- Immune Support: Our natural quercetin powder boosts the body's natural defenses against stimuli in the environment
- Metabolic Ally: Studies show that this chemical may help mitochondria work better and speed up the metabolism of energy.
- You may use natural quercetin powder in a lot of different ways, such in drinks, vitamins, or nutritious foods.
💡Tip: Taking pure quercetin powder with vitamin C will help the antioxidants work even better.
What can you do with the powder quercetin dihydrate?
- Supplements for food: Make them easy for your body to take in by using gummies or capsules.
- Drinks That Work: Add additional antioxidants to drinks.
- Herbal Blends: Make anti-inflammatory mixes that have been tested in a lab.
- Research Studies: Get access to pharma-grade materials for trials.
🔬 Quality You Can Count On
- Minimum purity: 95% (HPLC/UV checked)
- Grade: Food and pharmaceutical grade with two certifications
- Safety: Making things that follow HACCP
- Shelf Life: 24 months in packaging that doesn't let air in
- Origin: Shaanxi, China, where it is grown in a way that doesn't harm the environment
Trusted Certifications
✅ cGMP ⸱ ✅ ISO 9001 ⸱ ✅ HACCP ⸱ ✅ Halal/Kosher ⸱ ✅ REACH
We provide full documentation support, which includes COAs, MSDS, and stability data.
Bulk Order Perks
- MOQ 100 kg: Competitive FOB pricing with air/sea shipping.
- Dedicated Support: 1:1 account management for OEM projects.
- Inventory Tracking: Real-time updates and JIT delivery.
Our Exhibition
Why Partners Trust Us
> “We ensure consistent quality that meets our strict nutraceutical production standards.”
– Global Supplement Manufacturer
- 40+ Quality Tests: Conducted in ISO-certified labs per batch.
- 20+ Years of Expertise: Trusted by Fortune 500 pharmaceutical brands.
FAQ
Q: How pure is it, and does it fulfill USP standards?
A: We evaluated our Quercetin Powder with HPLC and found that it is more than 98% pure and meets USP/EP standards.
Q: Are COAs given for each batch?
A: Yes, each batch comes with a Certificate of Analysis that tells you how many heavy metals, solvents, and bacteria are in it.
Q: Can you change the size of the particles?
A: Of course! For better solubility in pills or liquids, we offer micronized choices.
Q: Is there a way to get certified that the product is free of allergens?
A: Yes, we can give you TSE/BSE-free statements and allergen declarations if you ask for them.
Q: How do you make sure the quality of the raw materials?
A: We track every batch of non-GMO plants from receipt to shipment.
Ready to Get Started?
Email our specialists at duke@hongdaherb.com to get samples, technical information, or bulk pricing!
Optimize your formulations with Quercetin Dihydrate Powder that combines purity, compliance, and scalability—all backed by decades of pharma expertise.
_1751529633740.webp)
