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Quercetin is a naturally occurring flavonol widely distributed in fruits, vegetables, tea, wine, and medicinal plants such as Sophora japonica. As a plant-derived polyphenol, quercetin is recognized as an important dietary antioxidant and has been extensively studied for its antioxidant activity and its role in supporting cellular balance and overall wellness. Common forms include quercetin dihydrate and various standardized botanical extracts containing quercetin.
Natural Field supplies high-purity quercetin powder bulk which is suitable for dietary supplements, functional foods, botanical blends, and research-oriented applications. Our wholesale quercetin powder features controlled particle size, low moisture content, and reliable batch-to-batch consistency. Complete technical documents including COA, MSDS, third-party test reports are available for global partners.
CAS No: 117-39-5
Molecular Formula: C15H14O9
Specification: 95%
Product Name | Quercetin dihydrate |
Cas No | 117-39-5 |
Spec./Purity | 95% |
Appearance | Yellow powder |
Keywords | Quercetin |
| Other | We also have Quercetin liposomal powder. For more details, please contact us email or phone. |
| Application | Antioxidant, anti-inflammatory, antibacterial, antiviral, free radical scavenging, and as immune support ingredients |
Certificate | FSSC22000/HACCP/SKS/ISO9001/USDA ORGANIC/ISO22000/HALAL/KOSHER |
Brand | Natural Field |
Shelf Life | 24 months |
Quercetin is a plant-derived flavonoid widely studied for its diverse biological activities. Naturally found in fruits and vegetables such as apples, berries, onions, and leafy greens, quercetin is commonly incorporated into modern nutritional formulations for its antioxidant and wellness-supporting properties.
Antioxidant Support: Quercetin helps neutralize free radicals and supports the body’s natural antioxidant defense systems. Its free radical–scavenging activity contributes to cellular protection and overall oxidative balance.
Supports a Healthy Inflammatory Response: Research suggests quercetin may help maintain a balanced inflammatory response under normal physiological conditions, making it a popular ingredient in wellness and recovery-focused formulations.
Immune System Support: Quercetin is frequently included in immune-support supplements due to its ability to help modulate immune function and support overall resistance and vitality.
Cellular Protection & Healthy Aging: Due to its antioxidant capacity and role in supporting cellular defense mechanisms, quercetin is widely used in formulations targeting cellular vitality and healthy aging support.
High Purity & Verified Quality: 95% pure quercetin powder manufactured with controlled purity standards and verified by HPLC testing.
Certified Manufacturing: Produced under strict quality management systems (FSSC22000/HACCP/SKS/ISO9001/USDA/ORGANIC/ISO22000/HALAL/KOSHER) to ensure safety and compliance.
Reliable Supply: Controlled particle size and moisture for formulation stability. Factory-direct production with sufficient stock and scalable ton-level capacity supports long-term bulk supply.
Flexible Specifications: Multiple specifications available with competitive pricing. Sample quantities (1–25 kg) are supported. Supply is available for business customers only.
Complete Documentation: COA, MSDS, specifications, and third-party testing reports are provided to support global regulatory and formulation requirements.
| Product Name: | Quercetin anhydrate | ||
| CAS No.: | 117-39-5 | Ref. Standard: | In-house Standard |
| Batch Number: | 20250307 | Manuf. Date: | Mar. 07, 2025 |
| Quantity: | 10kg | Expiration Date: | Mar. 06, 2027 |
| Storage Condition: | Store in a well-closed and dry place with constant room temperature and Non-direct sunlight. | ||
| Item | Specification | Result | |
| Assay | ≥95.0% (HPLC) | 95.7% | |
| Appearance | Yellow powder | Conforms | |
| Physical & Chemical Characteristics | |||
| Identification | Must positive | Conforms | |
| Particle size | 95% through 80 mesh | Conforms | |
| Residue on ignition | ≤0.30% | 0.12% | |
| Water determination | ≤4.0% | 2.3% | |
| Melting point | 305-315℃ | 312℃ | |
| Reducing sugars | Not be detected | Not detected | |
| Heavy Metals | ≤10.0ppm | Conforms | |
| Lead (Pb) | ≤3.0ppm | Conforms | |
| Arsenic (As) | ≤1.0ppm | Conforms | |
| Cadmium (Cd) | ≤1.0ppm | Conforms | |
| Mercury (Hg) | ≤0.5ppm | Conforms | |
| Microbiological Tests | |||
| Total plate Count | ≤1000cfu/g | Conforms | |
| Yeast & Mold | ≤100cfu/g | Conforms | |
| E.Coli. | Negative | Negative | |
| Salmonella | Negative | Negative | |
| Staphylococcus | Negative | Negative | |
| Conclusion: | Conform to the In-house Standard. | ||
How does quercetin work at the cellular level to support healthy aging?
Quercetin operates through multiple molecular pathways that relate to cellular integrity and resilience. At the cellular level, it can directly scavenge free radicals due to its phenolic structure and also promote the activity of endogenous antioxidant networks such as the Keap1/Nrf2/HO-1 signaling axis, which enhances intrinsic cellular defense systems.
Why is quercetin often featured alongside other antioxidant compounds in antioxidant discussions?
Quercetin is often discussed with other well-known plant polyphenols such as curcumin and resveratrol due to its strong antioxidant profile and broad biological activity. Like these compounds, quercetin is part of a class of plant phenolics that can neutralize free radicals, support cellular defense systems, and contribute to overall cellular health.
We accept intemational Express-FedexDHUPs, air shipping and sea shipping, We can ship to all over the word, even to some remote areas, suchas remote areas of Russia, countries near the north and south poles.
Thank you for your interest in our products!
Please noticed that our products are raw materail , only supply for commercial use.
Our products are not available for individual use.
