Montelukast sodium
Drug ingredientCAS 151767-02-1
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 293349 · basket
These shares come from HS customs code 293349, which covers 94 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Spain
- Portugal
- Germany
- Netherlands
- Israel
- Australia
- Taiwan
- Lithuania
- South Africa
- Hong Kong
48 FDA-registered drug labelers
Why It Matters
Appears in 3 drug and cosmetic product listings (FDA).
- •montelukast sodium
- •Montelukast
- •Singulair
- to be discontinued
Montelukast Sodium Tablet, Chewable
Shortage listed since November 17, 2025
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
25 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 |
|---|---|---|---|---|
| A2B Chem LLC | United States | $5.12 | 100 g | 98% |
| AA BLOCKS | United States | $5.40 | 100 g | 98% |
| Ambeed, Inc. | United States | $7.80 | 25 g | 98% |
| BLD Pharmatech Co., Limited | United States | $7.80 | 25 g | 98% |
| BLD Pharmatech GmbH | Germany | $7.80 | 25 g | 98% |
| BLD Pharmatech Ltd. | China | $7.80 | 25 g | 98% |
| Manchester Organics | United Kingdom | $9.31 | 25 g | — |
| MedKoo Biosciences, Inc | United States | $11.70 | 500 g | 98% |
| AK Scientific, Inc. | United States | $17.64 | 25 g | 98% |
| Aaron Chemicals LLC | Hong Kong | $21.32 | 25 g | 98% |
| Angene Chemical | China → Hong Kong | $22.80 | 25 g | 98% |
| Angene International Limited | United States | $28.48 | 25 g | 98% |
| Fulfilled by Molport | Latvia | $56.00 | 250 mg | 98% |
| AstaTech, Inc | United States | $78.80 | 5 g | 95% |
| Molnova | China | $238.00 | 500 mg | 99% |
| TargetMol Chemicals | China → United States | $264.00 | 500 mg | 99.89% |
| MedChemExpress MCE | Sweden | $399.30 | 500 mg | 99.84% |
| Apexbio Technology LLC | United States | $660.00 | 250 mg | 98.04% |
| Axon Medchem | Netherlands | $1680.00 | 50 mg | 99% |
| Cayman Europe | Estonia | $1877.82 | 500 mg | 98% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $3170.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| Key Organics Ltd. | United Kingdom | $11800.00 | 10 mg | 97% |
| TimTec, LLC (back-ordered) | United States | $33333.33 | 15 mg | 94% |
Chemical Identity
Data Sources
- PubChem · compound 23663996Retrieved 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
Montelukast sodium (CAS 151767-02-1) https://chemicalindependence.com/chemical/151767-02-1/ PubChem: 23663996. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/23663996 FDA National Drug Code directory: CAS 151767-02-1. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA Drug Shortages: CAS 151767-02-1. Retrieved 2026-10-04. https://www.accessdata.fda.gov/scripts/drugshortages/ US Census international trade: HS 293349 for CAS 151767-02-1. Reporting year: 2024. https://usatrade.census.gov/