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3-Phenylpent-4-enal

CAS 939-21-9

Molecular structure of 939-21-9
US productionNot reported
Import value, 2024$106M
Top sourceJapan 33%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

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 291229 · basket

These shares come from HS customs code 291229, which covers 104 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
JP 33%JapanCN 14%ChinaMX 13%MexicoIN 12%IndiaES 9%Spain

Why It Matters

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

Chemical Identity

CAS939-21-9
PubChem CIDNot recorded
DTXSIDDTXSID10862479
FormulaC11H12O
Mol. Weight160.216 g/mol
SMILESC=CC(CC=O)C1=CC=CC=C1

Data Sources

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Brief citations

3-Phenylpent-4-enal (CAS 939-21-9) https://chemicalindependence.com/chemical/939-21-9/ EPA CompTox (DSSTox): 939-21-9. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID10862479 US Census international trade: HS 291229 for CAS 939-21-9. Reporting year: 2024. https://usatrade.census.gov/