Standardized Quercetin Dihydrate (Sophora japonica Extract) 95% and 98% HPLC with CAS.6151-25-3

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Ultra-High Purity: Available in standardized 95% and 98% purity verified via High-Performance Liquid Chromatography (HPLC).

Pharma-Grade Contaminant Limits: Strictly compliant with USP/EP standards for heavy metals (Pb, Hg, As, Cd) and microbiology.
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Quercetin is one of the most extensively researched bio-flavonoids in the fields of Oncology R&D and Immune Modulation. At Blue Eye Bio, we provide Quercetin Dihydrate of exceptional purity, extracted from premium Sophora japonica (Japanese Pagoda Tree) buds. With 20 years of manufacturing heritage, we ensure that our Quercetin acts as a reliable molecular building block for professional laboratories and global pharmaceutical pipelines.

blue-eye-bio-high-purity-quercetin-dihydrate-powder-98-hplc

1. Unique Selling Points


    • Ultra-High Purity: Available in standardized 95% and 98% purity verified via High-Performance Liquid Chromatography (HPLC).

    • Botanical Integrity: 100% natural origin, non-GMO, and strictly controlled for pesticide residues.

    • Superior Particle Control: Optimized mesh size (typically 80-100 mesh) for excellent flowability in encapsulation and tableting.

    • Pharma-Grade Contaminant Limits: Strictly compliant with USP/EP standards for heavy metals (Pb, Hg, As, Cd) and microbiology.

2. Technical Specifications

Items

Specification (Standardized Grade)

Active Ingredient

Quercetin Dihydrate

CAS Number

6151-25-3

Source

Sophora japonica L.

Appearance

Fine Yellowish Powder

Assay (HPLC)

≥ 95.0% / ≥ 98.0%

Mesh Size

100% through 80 Mesh

Loss on Drying

8.0% - 12.0%

Heavy Metals

< 10 ppm


3.Industrial Application Scenarios

    • Oncology Research & Development: Used as a key compound in studying cell proliferation inhibition and apoptosis induction pathways.

    • Immune Health Formulations: A cornerstone ingredient for antioxidant stacks and respiratory health supplements.

    • Nutraceutical Pipelines: Ideal for high-potency capsules, tablets, and liposomal delivery systems.

4. Why Choose Blue Eye Bio?(The Strategic Advantage)

    • Unified QC Standard (UQS): Every batch undergoes a dual-audit process—at the alliance production site and our central laboratory—ensuring 100% specification adherence.

    • Direct Sourcing Governance: We eliminate procurement risks by managing a Strategic Supply Chain Alliance with first-hand access to the best raw material harvests.

    • Regulatory Readiness: We provide a full technical dossier, including COA, MSDS, TDS, and stability data to support your international compliance filings.




FAQ:

    • Q: What is the difference between Quercetin Dihydrate and Quercetin Anhydrous?

        • A: Quercetin Dihydrate contains two water molecules in its crystalline structure, which is the most stable and commonly used form in the supplement industry. Blue Eye Bio supplies both forms to meet specific formulation requirements.

    • Q: How do you verify the purity of your bulk Quercetin?

        • A: We use HPLC (High-Performance Liquid Chromatography) as our primary assay method. This ensures that the 95% or 98% claim is precisely measured against validated reference standards.

    • Q: Can you provide low-heavy-metal grades for pharmaceutical use?

        • A: Yes. Our Oncology-grade Quercetin is specifically refined to achieve ultra-low heavy metal profiles that exceed standard food-grade requirements, making it suitable for sensitive research applications.



Compliance & Support

GMP, ISO, HALAL, KOSHER, FDA Registered.

Full technical dossiers (MSDS, TDS, COA, Allergen Statement) are available for every batch.