Mifepristone
Drug ingredientCAS 84371-65-3
This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.
Why supply is unknownProduction 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 293729 · basket
These shares come from HS customs code 293729, which covers 57 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Netherlands
- Australia
- Malaysia
- Portugal
- United Kingdom
- Japan
- Malta
- Canada
- Israel
- Singapore
- New Zealand
- Poland
- Ukraine
- Belgium
- Sweden
13 FDA-registered drug labelers
Why It Matters
Appears in 2 drug and cosmetic product listings (FDA).
- •Mifepristone
- •Korlym
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
24 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $4.95 | 100 g | 99% |
| AA BLOCKS | United States | $16.60 | 5 g | 98% |
| A2B Chem LLC | United States | $16.60 | 5 g | 98% |
| Angene International Limited | United States | $19.00 | 5 g | 98% |
| MedKoo Biosciences, Inc | United States | $33.00 | 50 g | 98% |
| AstaTech, Inc | United States | $49.50 | 10 g | 95% |
| AK Scientific Specialized | United States | $93.00 | 5 g | 95% |
| TargetMol Chemicals | China → United States | $119.00 | 1 g | 99.76% |
| AK Scientific, Inc. | United States | $123.80 | 5 g | 98% |
| Apexbio Technology LLC | United States | $132.00 | 1 g | 99.78% |
| Molnova | China | $152.00 | 500 mg | 99% |
| Cayman Europe | Estonia | $199.44 | 5 g | 98% |
| MedChemExpress MCE | Sweden | $254.10 | 500 mg | 99.88% |
| Interbioscreen | Hong Kong | $401.00 | 10 g | 95% |
| CliniSciences GmbH | Switzerland | $709.50 | 100 mg | 99% |
| Sigma-Aldrich (Rush Stock) | Germany | $771.98 | 1 g | 98% |
| Sigma-Aldrich | Germany | $771.98 | 1 g | 98% |
| Vitas M Chemical Limited | Hong Kong | $1560.00 | 500 mg | 90% |
| Axon Medchem | Netherlands | $1920.00 | 50 mg | 99% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 90% |
| Princeton BioMolecular Research (SC) | United States | $2900.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 99% |
| Fulfilled by Molport | Latvia | $5000.00 | 1 mg | 99.8% |
| TimTec, LLC (back-ordered) | United States | $33333.33 | 15 mg | 94% |
Chemical Identity
Data Sources
- PubChem · compound 55245Retrieved 2026-04-07
- FDA National Drug Code directoryRetrieved 2026-04-25
- FDA National Drug Code directoryRetrieved 2026-04-07
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Mifepristone (CAS 84371-65-3) https://chemicalindependence.com/chemical/84371-65-3/ PubChem: 55245. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/55245 FDA National Drug Code directory: CAS 84371-65-3. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293729 for CAS 84371-65-3. Reporting year: 2024. https://usatrade.census.gov/