2-Pentylcyclopentanone
CAS 4819-67-4
U.S. production volumes are classified as confidential business information.
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. US production volume is confidential. 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 291429 · basket
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
These shares come from HS customs code 291429, which covers 163 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Slovakia
- Malaysia
- Netherlands
- Ukraine
- Singapore
- Brazil
- Romania
- United Kingdom
- Cyprus
- Canada
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.
7 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 | $0.06 | 10 kg | 95% |
| Angene International Limited | United States | $0.71 | 250 g | 95% |
| Aaron Chemicals LLC | Hong Kong | $52.80 | 5 g | 95% |
| Angene Chemical | China → Hong Kong | $53.40 | 5 g | 95% |
| AstaTech (2 weeks) | United States | $58.20 | 5 g | 95% |
| Interbioscreen | Hong Kong | $102.00 | 10 g | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 95% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID1044566Retrieved 2026-04-06
- PubChem · compound 20959Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
2-Pentylcyclopentanone (CAS 4819-67-4) https://chemicalindependence.com/chemical/4819-67-4/ EPA CompTox (DSSTox): DTXSID1044566. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1044566 PubChem: 20959. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/20959 EPA Chemical Data Reporting: 4819-67-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291429 for CAS 4819-67-4. Reporting year: 2024. https://usatrade.census.gov/