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4-Octenoic acid, ethyl ester, (4E)-

CAS 78989-37-4

Molecular structure of 78989-37-4
US productionNot reported
Import value, 2024$117M
Top sourceChina 50%

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 unknown

Production 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 291619 · basket

These shares come from HS customs code 291619, which covers 169 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 50%ChinaDE 21%GermanyTW 12%TaiwanIN 7%IndiaGB 3%United Kingdom

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS78989-37-4
PubChem CIDNot recorded
DTXSIDDTXSID70888554
FormulaC10H18O2
Mol. Weight170.252 g/mol
SMILESCCC\C=C\CCC(=O)OCC

Data Sources

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Brief citations

4-Octenoic acid, ethyl ester, (4E)- (CAS 78989-37-4) https://chemicalindependence.com/chemical/78989-37-4/ EPA TSCA Inventory: CAS 78989-37-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291619 for CAS 78989-37-4. Reporting year: 2024. https://usatrade.census.gov/