We have five factories and 23 years of experience in plant extracts
  • 0086-571-85302990
  • sales@greenskybio.com
中文
Contact US

Technical Articles

We hold regular seminars and welcome inquiries if you have any questions

Let's talk
home > FAQ > Plant Extract > Quercetin Benefits & Applications

Quercetin Benefits & Applications

2026-06-05
Related Product
Quercetin
We are the leading quercetin manufacturer and also the leading supplier and exporter of quercetin. We specialize in providing natural and organic quercetin to meet your needs.
Quercetin

Quercetin Benefits & Applications

Published: 2026-06-03 | Greensky Bio FAQ | CAS: 117-39-5

Q: What is Quercetin?

Quercetin (槲皮素) is Flavonoid with powerful antioxidant and anti-inflammatory properties.

CAS Number: 117-39-5

Available Specifications: 95%, 98%

Q: What are the main applications?

  • Antioxidant

  • Anti-inflammatory

  • Immune Support

  • Allergy Relief

Q: What specifications do you offer?
SpecificationPurityApplications
95%High PurityDietary Supplements, Functional Foods
98%High PurityDietary Supplements, Functional Foods
Q: What is the recommended dosage?

Dosage varies by application and formulation. General guidelines:

  • Dietary Supplements: Follow product-specific recommendations

  • Functional Foods: 50-500mg per serving depending on application

  • Cosmetics: 0.1-5% depending on product type

Contact our technical team for specific formulation guidance.

Q: Is Quercetin safe?

Yes, Quercetin has been extensively studied and is generally recognized as safe when used as directed. Our products are:

  • Manufactured in GMP-certified facilities

  • Tested for purity, potency, and contaminants

  • Compliant with international regulations (FDA, EFSA, etc.)

  • Non-GMO and allergen-free options available

Technical Specifications

Production Process:

Our Quercetin is produced using advanced manufacturing processes to ensure high purity and quality:

  1. Raw Material Selection: Premium grade starting materials from certified suppliers

  2. Synthesis/Extraction: Optimized process parameters for maximum yield and purity

  3. Purification: Multiple purification steps including crystallization, chromatography, or filtration

  4. Quality Testing: Comprehensive testing at each stage

  5. Packaging: Sealed in moisture-proof containers with nitrogen flushing

Quality Testing Methods:

  • Content Assay: HPLC analysis for active compound quantification

  • Heavy Metals: ICP-MS (Pb ≤ 2.0 ppm, As ≤ 1.0 ppm, Hg ≤ 0.1 ppm, Cd ≤ 0.5 ppm)

  • Microbiological: TP ≤ 1,000 CFU/g, Mold/Yeast ≤ 100 CFU/g, Pathogens negative

  • Solvent Residues: GC analysis per USP <467>

  • Physical Properties: Appearance, odor, particle size, bulk density

Storage & Handling:

  • Storage: Store in cool, dry place (< 25°C), protected from light and moisture

  • Shelf Life: 24 months when stored properly

  • Packaging: 1kg aluminum foil bags, 25kg fiber drums

  • Handling: Use in well-ventilated area, avoid inhalation of dust

Related Keywords: Quercetin, 槲皮素, Antioxidant Anti-inflammatory Immune Support Allergy Relief, CAS 117-39-5, natural ingredients, dietary supplements, functional foods, cosmetics, ISO certified, GMP certified
About Greensky Bio:
Hangzhou Greensky Biological Tech.Co.,Ltd (est. 2004) is a professional manufacturer of natural ingredients with ISO22000, BRCGS, Ecocert Organic, and SGS-GMP certifications. We export to Europe, USA, South Korea, Russia, and 50+ countries worldwide.

Contact: sales@greenskybio.com | www.greenskybio.com | Technical support available

© 2026 Hangzhou Greensky Biological Tech.Co.,Ltd. All rights reserved.


TAGS:
Get a Quote