dalfampridine
Drug ingredientCAS 504-24-5
This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
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 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 293339 · basket
These shares come from HS customs code 293339, which covers 397 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Taiwan
- Ukraine
- Sweden
- Argentina
- Canada
- Finland
- Malta
- Israel
- Netherlands
- Denmark
- United Arab Emirates
- Mexico
- Brunei
- Slovakia
- Australia
- South Africa
- Poland
- Latvia
- Lithuania
- Estonia
- Slovenia
- Czech Republic
- Croatia
- Hong Kong
17 FDA-registered drug labelers
Why It Matters
Appears in 2 drug and cosmetic product listings (FDA).
- •Ampyra
- •Dalfampridine
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 |
|---|---|---|---|---|
| AA BLOCKS | United States | $0.30 | 500 g | 98% |
| AK Scientific Specialized | United States | $0.60 | 500 g | 98% |
| Apollo Scientific UK | United Kingdom | $0.72 | 250 g | 98% |
| AK Scientific, Inc. | United States | $0.84 | 500 g | 99% |
| Fluorochem UK | United Kingdom | $1.18 | 500 g | 98% |
| AstaTech, Inc | United States | $1.23 | 100 g | 97% |
| ALFA AESAR | Germany | $1.24 | 250 g | 98% |
| Cayman Europe | Estonia | $1.93 | 100 g | 95% |
| Sigma-Aldrich (Rush Stock) | Germany | $2.14 | 100 g | 98% |
| Sigma-Aldrich | Germany | $2.14 | 100 g | 98% |
| Interbioscreen | Hong Kong | $10.00 | 10 g | 95% |
| Fulfilled by Molport | Latvia | $20.00 | 500 mg | — |
| HTS Biochemie Innovationen | Germany | $120.00 | 10 g | 95% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| CliniSciences GmbH | Switzerland | $322.50 | 100 mg | 98% |
| Molnova | China | $900.00 | 50 mg | 99% |
| TargetMol Chemicals EU | Austria | $1000.00 | 50 mg | 99.9% |
| Otava, Ltd. | Ukraine | $2280.00 | 50 mg | 95% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 95% |
| Princeton BioMolecular Research (SC) | United States | $2900.00 | 100 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $3170.00 | 100 mg | 90% |
| ChemDiv, Inc. | United States | $4400.00 | 90 mg | 90% |
| Asinex | Netherlands | $8651.50 | 100 mg | 90% |
| TimTec, LLC (back-ordered) | United States | $32000.00 | 15 mg | 94% |
Chemical Identity
Data Sources
- PubChem · compound 1727Retrieved 2026-04-07
- EPA TSCA InventoryRetrieved 2026-04-24
- FDA National Drug Code directoryRetrieved 2026-04-07
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
dalfampridine (CAS 504-24-5) https://chemicalindependence.com/chemical/504-24-5/ PubChem: 1727. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/1727 EPA TSCA Inventory: CAS 504-24-5. 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 293339 for CAS 504-24-5. Reporting year: 2024. https://usatrade.census.gov/