Chlorthalidone
Drug ingredientCAS 77-36-1
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 293590 · basket
These shares come from HS customs code 293590, which covers 182 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Portugal
- Spain
- Italy
- Austria
- Israel
- Hungary
- Canada
- South Korea
- Netherlands
- Finland
- Poland
- Indonesia
- Ukraine
- Mexico
- South Africa
- Croatia
- Greece
- Taiwan
- Hong Kong
52 FDA-registered drug labelers
Why It Matters
Appears in 7 drug and cosmetic product listings (FDA).
- •Chlorthalidone
- •Atenolol AND Chlorthalidone
- •Chlorthalidone Chlorthalidone
- •Thalitone
- •Tenoretic
- •Hemiclor
- •Edarbyclor
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
16 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 | $2.70 | 100 g | 97% |
| AA BLOCKS | United States | $2.85 | 100 g | 97% |
| AK Scientific Specialized | United States | $3.43 | 100 g | 95% |
| Labotest KG | Germany | $453.00 | 1000 mg | 90% |
| MedChemExpress MCE | Sweden | $798.60 | 250 mg | 99.76% |
| Sigma-Aldrich (Rush Stock) | Germany | $2610.40 | 200 mg | — |
| Sigma-Aldrich | Germany | $2610.40 | 200 mg | — |
| AK Scientific, Inc. | United States | $2760.00 | 100 mg | 98% |
| Molnova | China | $2840.00 | 50 mg | 99% |
| MedKoo Biosciences, Inc | United States | $3800.00 | 250 mg | 98% |
| Princeton BioMolecular Research (SC) | United States | $5000.00 | 30 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $5133.33 | 30 mg | 90% |
| Key Organics Ltd. | United Kingdom | $6900.00 | 10 mg | 97% |
| ChemDiv, Inc. | United States | $7666.67 | 15 mg | 90% |
| Cayman Europe | Estonia | $9781.80 | 50 mg | 98% |
| TimTec, LLC | United States | $14666.67 | 30 mg | 90% |
Chemical Identity
Data Sources
- PubChem · compound 2732Retrieved 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
Chlorthalidone (CAS 77-36-1) https://chemicalindependence.com/chemical/77-36-1/ PubChem: 2732. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/2732 FDA National Drug Code directory: CAS 77-36-1. 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 293590 for CAS 77-36-1. Reporting year: 2024. https://usatrade.census.gov/