alfatradiol
Drug ingredientCAS 57-91-0
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 290729 · basket
These shares come from HS customs code 290729, which covers 82 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Austria
- United Kingdom
- Denmark
- Canada
- Colombia
- New Zealand
- Poland
- Netherlands
- Ukraine
1 FDA-registered drug labeler
Why It Matters
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
38 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 | $1.84 | 500 g | 98% |
| AA BLOCKS | United States | $2.27 | 100 g | 99% |
| A2B Chem LLC | United States | $2.27 | 100 g | 99% |
| Chemscene | United States | $3.25 | 100 g | — |
| Fluorochem EU | Germany | $4.36 | 10 g | 97% |
| Angene International Limited | United States | $4.90 | 10 g | 97% |
| Fulfilled by Molport | Latvia | $5.00 | 1 g | 98% |
| Fluorochem UK | United Kingdom | $5.15 | 5 g | 97% |
| AstaTech, Inc | United States | $6.72 | 25 g | 97% |
| AK Scientific Specialized | United States | $14.20 | 5 g | 98% |
| Accela ChemBio | United States | $15.00 | 1 g | 97% |
| Cayman Europe | Estonia | $26.18 | 10 g | 98% |
| AK Scientific, Inc. | United States | $26.40 | 5 g | 97% |
| TargetMol Chemicals | China → United States | $37.50 | 2 g | 99.99% |
| Sigma-Aldrich (Rush Stock) | Germany | $51.90 | 100 g | — |
| Sigma-Aldrich | Germany | $51.90 | 100 g | — |
| Apexbio Technology LLC | United States | $57.00 | 1 g | 99.28% |
| Interbioscreen | Hong Kong | $64.50 | 10 g | 95% |
| Molnova | China | $82.00 | 500 mg | 99% |
| MedChemExpress MCE | Sweden | $82.28 | 1 g | 99.93% |
| MedKoo Biosciences, Inc | United States | $85.00 | 10 g | 98% |
| TargetMol Chemicals EU | Austria | $88.00 | 500 mg | 99.99% |
| Eximed | Ukraine | $160.00 | 1 g | 95% |
| A2B Chem LLC (1 week) | United States | $269.00 | 1 g | 99% |
| AA BLOCKS (1 week) | United States | $280.00 | 1 g | 99% |
| Biopharma PEG Scientific Inc. | United States | $288.00 | 1 g | 95% |
| Otava, Ltd. | Ukraine | $300.00 | 1 g | 90% |
| CliniSciences GmbH | Switzerland | $361.20 | 100 mg | 99% |
| ChemNorm | China | $440.00 | 100 mg | 98% |
| Labotest KG | Germany | $453.00 | 1000 mg | 90% |
| AstaTech (2 weeks) | United States | $470.00 | 1 g | 95% |
| Axon Medchem | Netherlands | $1320.00 | 100 mg | 99% |
| ChemFaces | China | $1500.00 | 20 mg | 98% |
| Specs | Netherlands | $1502.82 | 1 g | 90% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 90% |
| Princeton BioMolecular Research (SC) | United States | $2900.00 | 100 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $3170.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
Chemical Identity
Data Sources
- PubChem · compound 68570Retrieved 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
alfatradiol (CAS 57-91-0) https://chemicalindependence.com/chemical/57-91-0/ PubChem: 68570. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/68570 FDA National Drug Code directory: CAS 57-91-0. 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 290729 for CAS 57-91-0. Reporting year: 2024. https://usatrade.census.gov/