Quercetin Extract (Sophora japonica) 98% Quercetin
CAS number: 117-39-5 · INCI: Quercetin Extract (Sophora japonica) 98% Quercetin
Key Benefits
- Strong antioxidant and free-radical scavenging activity
- Supports healthy immune response and respiratory comfort
- Natural anti-histamine support for seasonal allergies
- Supports cardiovascular and endothelial health
- Supports exercise recovery and reduced oxidative stress
- 98% high purity with consistent HPLC assay
Main Applications
- Immune support capsules, tablets and powder; allergy relief formulas; antioxidant blends; sports nutrition; functional foods.
Recommended Use Levels
Use levels depend on the finished-product category and the target claim. Contact our technical team for grade-specific guidance and samples.
EU & Regulatory Notes
Ingredients supplied for food and supplement use must comply with the EU food law framework applicable to your finished product and destination market — in particular Directive 2002/46/EC on food supplements and Regulation (EU) 2015/2283 on novel foods where relevant — as well as national rules in each Member State. Always verify permitted ingredient status and maximum levels before launch; Aogubio provides COA, SDS and technical documentation to support your compliance file.
Why Buy Bulk Quercetin Extract (Sophora japonica) 98% Quercetin from Aogubio?
- GMP-certified manufacturing: consistent quality from raw material to finished ingredient
- Complete documentation: COA, SDS and heavy metal test reports with every batch
- Flexible supply: samples to full container loads, MOQ from 1 kg
- Export experience: reliable shipping to EU, North America and Asia
FAQ
What is quercetin CAS?
CAS 117-39-5 (quercetin dihydrate).
Q: What is the source?
Sophora japonica flower buds (Japanese pagoda tree).
Q: Is it suitable for vegans?
Yes, 100% plant-derived, no animal ingredients.
Q: Do you provide COA
What is the source?
Sophora japonica flower buds (Japanese pagoda tree).
Q: Is it suitable for vegans?
Yes, 100% plant-derived, no animal ingredients.
Q: Do you provide COA?
Yes, per-batch COA with HPLC assay and full quality tests.
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What is the MOQ?
25kg per drum; samples available.
View the Quercetin Extract (Sophora japonica) 98% Quercetin product page for specifications and to request samples.
Aogubio Co., Ltd (Imaherb) is a GMP-certified manufacturer of bulk ingredients. Every batch ships with COA, MSDS and heavy metal test reports.