1-Pyrenebutanoic acid
CAS 3443-45-6
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 291639 · basket
These shares come from HS customs code 291639, which covers 229 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Spain
- Ukraine
- Singapore
- Turkey
- Norway
- Czech Republic
- Taiwan
- South Korea
- Japan
- Mexico
- New Zealand
- Canada
- Sweden
- Hong Kong
- Latvia
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
26 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 |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $4.76 | 25 g | 97% |
| AA BLOCKS | United States | $5.44 | 25 g | 95% |
| A2B Chem LLC | United States | $5.44 | 25 g | 95% |
| Chemscene | United States | $6.84 | 100 g | — |
| Combi-Blocks, Inc. | United States | $7.20 | 100 g | 97% |
| BLD Pharmatech Co., Limited | United States | $7.20 | 100 g | 95% |
| BLD Pharmatech GmbH | Germany | $7.20 | 100 g | 95% |
| BLD Pharmatech Ltd. | China | $7.20 | 100 g | 95% |
| Ambeed, Inc. | United States | $7.20 | 100 g | 95% |
| Fluorochem EU | Germany | $7.79 | 25 g | 95% |
| Fluorochem UK | United Kingdom | $7.95 | 25 g | 95% |
| MedChemExpress MCE | Sweden | $8.55 | 100 g | 99.91% |
| AK Scientific Specialized | United States | $16.20 | 5 g | 95% |
| AK Scientific, Inc. | United States | $22.00 | 5 g | 98% |
| AstaTech, Inc | United States | $33.60 | 5 g | 97% |
| ALFA AESAR | Germany | $38.40 | 5 g | 97% |
| Angene International Limited | United States | $41.00 | 5 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $69.85 | 5 g | 97% |
| Sigma-Aldrich | Germany | $69.85 | 5 g | 97% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Apexbio Technology LLC | United States | $340.00 | 250 mg | 99.88% |
| Maybridge, Ltd. | United Kingdom | $2414.30 | 100 mg | 90% |
| Otava, Ltd. | Ukraine | $2724.00 | 50 mg | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 97% |
| TimTec, LLC (back-ordered) | United States | $32000.00 | 15 mg | 94% |
| MedKoo Biosciences, Inc | United States | $42000.00 | 25 mg | 98% |
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
1-Pyrenebutanoic acid (CAS 3443-45-6) https://chemicalindependence.com/chemical/3443-45-6/ EPA TSCA Inventory: CAS 3443-45-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291639 for CAS 3443-45-6. Reporting year: 2024. https://usatrade.census.gov/