riluzole
Drug ingredientActive ShortageCAS 1744-22-5
This drug ingredient is in active FDA shortage. At least one manufacturer cannot meet demand.
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 293420 · basket
These shares come from HS customs code 293420, which covers 76 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Japan
- Canada
- Ireland
- Slovakia
- Ukraine
- United Kingdom
- Taiwan
- Germany
- Netherlands
- South Korea
- Switzerland
- Greece
- Croatia
12 FDA-registered drug labelers
Why It Matters
Appears in 3 drug and cosmetic product listings (FDA).
- •Riluzole
- •Teglutik
- •Tiglutik
- Current shortage
Riluzole Oral Suspension
Shortage listed since January 26, 2024
Manufacturer reports: 1 unavailable, 1 available
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 |
|---|---|---|---|---|
| AA BLOCKS | United States | $0.72 | 25 g | 98% |
| Aaron Chemicals LLC | Hong Kong | $0.73 | 100 g | 99% |
| Angene Chemical | China → Hong Kong | $0.79 | 100 g | 99% |
| Chemscene | United States | $0.83 | 100 g | — |
| AstaTech, Inc | United States | $0.87 | 100 g | 96% |
| Combi-Blocks, Inc. | United States | $0.87 | 100 g | 98% |
| Fluorochem EU | Germany | $1.02 | 100 g | 97% |
| Fluorochem UK | United Kingdom | $1.09 | 25 g | 97% |
| Ambeed, Inc. | United States | $1.16 | 25 g | 97% |
| Angene International Limited | United States | $2.05 | 100 g | 98% |
| AK Scientific Specialized | United States | $2.50 | 100 g | 95% |
| AK Scientific, Inc. | United States | $3.86 | 100 g | 98% |
| MedKoo Biosciences, Inc | United States | $5.95 | 1 kg | 98% |
| ALFA AESAR | Germany | $12.86 | 25 g | 98% |
| ChemDiv, Inc. | United States | $18.00 | 50 g | 90% |
| Fulfilled by Molport | Latvia | $20.00 | 250 mg | 97% |
| Apollo Scientific UK | United Kingdom | $21.00 | 1 g | 97% |
| Interbioscreen | Hong Kong | $51.00 | 10 g | 95% |
| Life Chemicals Inc. | Ukraine → Canada | $72.00 | 250 mg | 95% |
| Molnova | China | $141.00 | 1 g | 99% |
| TargetMol Chemicals | China → United States | $157.00 | 1 g | 99.88% |
| MedChemExpress MCE | Sweden | $261.36 | 1 g | 99.8% |
| Apexbio Technology LLC | United States | $440.00 | 500 mg | 99.39% |
| Labotest KG | Germany | $453.00 | 1000 mg | 90% |
| Sigma-Aldrich (Rush Stock) | Germany | $1055.50 | 300 mg | — |
| Sigma-Aldrich | Germany | $1055.50 | 300 mg | — |
| Cayman Europe | Estonia | $1582.70 | 100 mg | 98% |
| CliniSciences GmbH | Switzerland | $1909.20 | 100 mg | 98% |
| Axon Medchem | Netherlands | $1920.00 | 50 mg | 100% |
| Eximed | Ukraine | $2680.00 | 50 mg | 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 | 99% |
| Asinex | Netherlands | $6461.40 | 100 mg | 90% |
| Key Organics Ltd. | United Kingdom | $6900.00 | 10 mg | 97% |
| TimTec, LLC | United States | $9333.33 | 30 mg | 90% |
| ChemBridge Corporation (rush stock) | United States | $13600.00 | 5 mg | 90% |
Chemical Identity
Data Sources
- PubChem · compound 5070Retrieved 2026-04-07
- FDA National Drug Code directoryRetrieved 2026-04-25
- FDA Drug ShortagesRetrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
riluzole (CAS 1744-22-5) https://chemicalindependence.com/chemical/1744-22-5/ PubChem: 5070. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5070 FDA National Drug Code directory: CAS 1744-22-5. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA Drug Shortages: CAS 1744-22-5. Retrieved 2026-10-04. https://www.accessdata.fda.gov/scripts/drugshortages/ US Census international trade: HS 293420 for CAS 1744-22-5. Reporting year: 2024. https://usatrade.census.gov/