4-Oxopentanoic acid
CAS 123-76-2
EPA’s 2023 records show zero U.S. production of this chemical.
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction is reported production, not a complete census of factories. Production reporting year: 2023. 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
- 2023
- US production Zero · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
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
Industrial Uses
Used in 2 sectors as 2 functional roles.
- •Intermediate in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Laboratory chemicals in OtherUse—non-incorporative activities
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 |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $0.02 | 1 kg | 98% |
| AA BLOCKS | United States | $0.03 | 1 kg | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $0.04 | 25 kg | 97% |
| Sigma-Aldrich | Germany | $0.04 | 25 kg | 97% |
| A2B Chem LLC | United States | $0.04 | 500 g | 97% |
| Chemscene | United States | $0.05 | 1 kg | — |
| Fluorochem EU | Germany | $0.07 | 500 g | 97% |
| Ambeed, Inc. | United States | $0.11 | 1 kg | 97% |
| ALFA AESAR | Germany | $0.12 | 5 kg | 98% |
| MedChemExpress MCE | Sweden | $0.13 | 1 kg | 99.95% |
| AK Scientific, Inc. | United States | $0.25 | 1 kg | 99% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 98% |
| Fluorochem UK | United Kingdom | $0.34 | 25 g | 97% |
| AK Scientific Specialized | United States | $0.43 | 100 g | 98% |
| AstaTech, Inc | United States | $0.49 | 100 g | 95% |
| Angene International Limited | United States | $3.08 | 25 g | 99% |
| Interbioscreen | Hong Kong | $24.00 | 10 g | 95% |
| Molnova | China | $66.00 | 500 mg | 99% |
| Otava, Ltd. | Ukraine | $2280.00 | 50 mg | 95% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID8021648Retrieved 2026-04-06
- PubChem · compound 11579Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
4-Oxopentanoic acid (CAS 123-76-2) https://chemicalindependence.com/chemical/123-76-2/ EPA CompTox (DSSTox): DTXSID8021648. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8021648 PubChem: 11579. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/11579 EPA Chemical Data Reporting: 123-76-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 123-76-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291830 for CAS 123-76-2. Reporting year: 2024. https://usatrade.census.gov/