Butanedioic acid, 2-methyl-3-oxo-, 1,4-diethyl ester
CAS 759-65-9
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 291830 · basket
These shares come from HS customs code 291830, which covers 98 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Netherlands
- Ukraine
- United Kingdom
- New Zealand
- Taiwan
- Malaysia
- Belgium
- Madagascar
- South Korea
- Israel
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.
21 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 | $1.00 | 500 g | 95% |
| Combi-Blocks, Inc. | United States | $1.09 | 500 g | 95% |
| BLD Pharmatech Co., Limited | United States | $1.27 | 500 g | 95% |
| BLD Pharmatech GmbH | Germany | $1.27 | 500 g | 95% |
| BLD Pharmatech Ltd. | China | $1.27 | 500 g | 95% |
| Ambeed, Inc. | United States | $1.27 | 500 g | 95% |
| Aaron Chemicals LLC | Hong Kong | $1.29 | 100 g | 95% |
| Angene Chemical | China → Hong Kong | $1.40 | 25 g | 95% |
| AK Scientific Specialized | United States | $1.54 | 100 g | 95% |
| AK Scientific, Inc. | United States | $2.06 | 100 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $2.82 | 100 g | 95% |
| Sigma-Aldrich | Germany | $2.82 | 100 g | 95% |
| Synthonix | United States | $3.00 | 10 g | 95% |
| Angene International Limited | United States | $3.52 | 100 g | 98% |
| AstaTech (2 weeks) | United States | $7.20 | 5 g | 95% |
| TargetMol Chemicals | China → United States | $15.50 | 2 g | 97.42% |
| MedChemExpress MCE | Sweden | $18.63 | 5 g | 95% |
| Molnova | China | $74.00 | 500 mg | 99% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 95% |
| Key Organics Ltd. | United Kingdom | $6900.00 | 10 mg | 95% |
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Butanedioic acid, 2-methyl-3-oxo-, 1,4-diethyl ester (CAS 759-65-9) https://chemicalindependence.com/chemical/759-65-9/ EPA TSCA Inventory: CAS 759-65-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291830 for CAS 759-65-9. Reporting year: 2024. https://usatrade.census.gov/