Diflunisal
Drug ingredientCAS 22494-42-4
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 291829 · basket
These shares come from HS customs code 291829, which covers 85 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- United Kingdom
- Germany
- Malaysia
- Mexico
- Ireland
- Ukraine
- Slovakia
- Hungary
- Spain
10 FDA-registered drug labelers
Why It Matters
Appears in 2 drug and cosmetic product listings (FDA).
- •diflunisal
- •Dolobid
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
29 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 |
|---|---|---|---|---|
| AA BLOCKS | United States | $1.19 | 100 g | 98% |
| Combi-Blocks, Inc. | United States | $1.20 | 100 g | 98% |
| BLD Pharmatech Co., Limited | United States | $1.40 | 100 g | 98% |
| BLD Pharmatech GmbH | Germany | $1.40 | 100 g | 98% |
| Ambeed, Inc. | United States | $1.40 | 100 g | 98% |
| Aaron Chemicals LLC | Hong Kong | $1.40 | 25 g | 98% |
| Angene Chemical | China → Hong Kong | $1.60 | 25 g | 98% |
| BLD Pharmatech Ltd. | China | $1.60 | 25 g | 98% |
| AK Scientific Specialized | United States | $1.68 | 500 g | 95% |
| Fluorochem EU | Germany | $1.98 | 25 g | 98% |
| AK Scientific, Inc. | United States | $2.30 | 500 g | 98% |
| Apollo Scientific UK | United Kingdom | $2.36 | 100 g | 98% |
| Fluorochem UK | United Kingdom | $2.43 | 10 g | 98% |
| Angene International Limited | United States | $3.60 | 500 g | 98% |
| Fulfilled by Molport | Latvia | $5.00 | 1 g | 98% |
| AstaTech (2 weeks) | United States | $8.00 | 5 g | 98% |
| Cayman Europe | Estonia | $10.76 | 50 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $12.35 | 5 g | — |
| Sigma-Aldrich | Germany | $12.35 | 5 g | — |
| MedKoo Biosciences, Inc | United States | $38.00 | 25 g | 98% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Molnova | China | $266.00 | 500 mg | 99% |
| TargetMol Chemicals | China → United States | $296.00 | 500 mg | 99.66% |
| Apexbio Technology LLC | United States | $416.00 | 500 mg | 98% |
| TargetMol Chemicals EU | Austria | $610.00 | 100 mg | 99.66% |
| MedChemExpress MCE | Sweden | $968.00 | 100 mg | 99.82% |
| Axon Medchem | Netherlands | $1200.00 | 50 mg | 99% |
| Key Organics Ltd. | United Kingdom | $1960.00 | 100 mg | 97% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
Chemical Identity
Data Sources
- PubChem · compound 3059Retrieved 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
Diflunisal (CAS 22494-42-4) https://chemicalindependence.com/chemical/22494-42-4/ PubChem: 3059. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/3059 FDA National Drug Code directory: CAS 22494-42-4. 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 291829 for CAS 22494-42-4. Reporting year: 2024. https://usatrade.census.gov/