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Quercetin

Drug ingredient

CAS 117-39-5

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

Molecular structure of 117-39-5
US productionNot reported
Import value, 2024$3.5B
Top sourceIreland 57%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293299 · basket

These shares come from HS customs code 293299, which covers 229 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 57%IrelandNL 24%NetherlandsCH 8%SwitzerlandCN 5%ChinaIT 2%Italy
6 FDA-registered drug labelers
BioActive Nutritional, Inc.
Deseret Biologicals, Inc.
Dr. Donna Restivo DC
Energique, Inc.
Professional Complementary Health Formulas
Source Naturals, Inc.

Why It Matters

Sectors
Health
Downstream Uses

Appears in 17 drug and cosmetic product listings (FDA).

  • •Detox II
  • •Bread Cravings
  • •Quercetin Phenolic
  • •Quercetin
  • •Dairy Allergen Mix
  • •Chip Cravings
  • •Respiratory Plus
  • •Quercetin 1540
Show all 17
  • •Bio Lymph Phase
  • •Egg Allergen Mix
  • •Multi-Phenolic
  • •Allermilk
  • •Bio Placenta Phase
  • •D2 Organ Support
  • •Free Radical
  • •Grain and Soy Allergen Mix
  • •Allercetin
FDA Shortage Status
No FDA shortage records

Vendor Pricing

$0.15/gAaron Chemicals LLC
CountryHong Kong
Pack$148.00 / 1 kg
Purity98%
Vendors35 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

34 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.161 kg98%
A2B Chem LLCUnited States$0.28250 g97%
Ambeed, Inc.United States$0.29500 g95%
Combi-Blocks, Inc.United States$0.30500 g96%
AstaTech, IncUnited States$0.32500 g98%
AA BLOCKSUnited States$0.34100 g95%
Fluorochem EUGermany$0.69100 g95%
Fluorochem UKUnited Kingdom$0.70100 g95%
Apollo Scientific UKUnited Kingdom$1.02100 g—
Angene International LimitedUnited States$1.56100 g95%
MedChemExpress MCESweden$4.22100 g99.8%
Sigma-Aldrich (Rush Stock)Germany$4.65100 g95%
Sigma-AldrichGermany$4.65100 g95%
MedKoo Biosciences, IncUnited States$6.95100 g98%
Apexbio Technology LLCUnited States$16.605 g96.77%
MolnovaChina$45.001 g99%
TargetMol ChemicalsChina → United States$50.001 g99.98%
ChemDiv, Inc.United States$56.0025 g90%
Chengdu Biopurify Phytochemicals Ltd.China$142.001 g99%
CliniSciences GmbHSwitzerland$322.50100 mg98%
Vitas M Chemical LimitedHong Kong$390.00500 mg90%
Labotest KGGermany$453.001000 mg90%
ChemNormChina$750.0020 mg98%
ChemFacesChina$1500.0020 mg98%
Key Organics Ltd.United Kingdom$2080.0050 mg98%
AK Scientific, Inc.United States$2400.0025 mg95%
Maybridge, Ltd.United Kingdom$2414.30100 mg90%
SpecsNetherlands$2534.951 g90%
Princeton BioMolecular Research (SC)United States$2900.00100 mg90%
AngeneChina → Hong Kong$4266.6730 mg98%
Otava, Ltd. (2 weeks)Ukraine$6590.0010 mg95%
InterbioscreenHong Kong$18871.50100 mg95%
AsinexNetherlands$40656.005 mg90%
AnalytiCon Discovery - a Division of BRAIN Biotech AGGermany$73652.70100 mg85%

Chemical Identity

CAS117-39-5
PubChem CID5280343
DTXSIDDTXSID4021218
FormulaC15H10O7
Mol. Weight302.23 g/mol
SMILESC1=CC(=C(C=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)O)O)O

Data Sources

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Brief citations

Quercetin (CAS 117-39-5) https://chemicalindependence.com/chemical/117-39-5/ PubChem: 5280343. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5280343 EPA TSCA Inventory: CAS 117-39-5. Retrieved 2026-04-24. https://www.epa.gov/tsca-inventory FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293299 for CAS 117-39-5. Reporting year: 2024. https://usatrade.census.gov/