trans,cis-2,6-Nonadienal
CAS 557-48-2
EPA’s 2019 records show zero U.S. production of this chemical.
EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.
Why supply is unknownProduction is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 291219 · basket
- 2019
- US production Zero · Imports Zero
These shares come from HS customs code 291219, which covers 130 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Brazil
- Portugal
- Austria
- Hungary
- Sweden
- Philippines
- Singapore
- Netherlands
- Indonesia
- Australia
- Slovakia
- Romania
- Ukraine
- Hong Kong
- Ireland
- Vietnam
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID1047104Retrieved 2026-04-06
- PubChem · compound 643731Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
trans,cis-2,6-Nonadienal (CAS 557-48-2) https://chemicalindependence.com/chemical/557-48-2/ EPA CompTox (DSSTox): DTXSID1047104. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1047104 PubChem: 643731. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/643731 EPA Chemical Data Reporting: 557-48-2. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291219 for CAS 557-48-2. Reporting year: 2024. https://usatrade.census.gov/