Pent-2-enoic acid

CAS 626-98-2

US productionNot reported

Import value, 2024$117M

Top sourceChina 50%

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

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

Country of origin for US imports, from Census customs data (2024).

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

Hungary
Spain
Japan
Belgium
Ukraine
Netherlands
Sweden
Poland
Israel
Brazil
Malaysia
Slovakia
Morocco

Why It Matters

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

Chemical Identity

CAS626-98-2

PubChem CIDNot recorded

DTXSIDDTXSID40862321

FormulaC5H8O2

Mol. Weight100.117 g/mol

SMILESCCC=CC(O)=O

Data Sources

EPA CompTox (DSSTox) · DTXSID40862321Retrieved 2026-04-29
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

← Back to Dashboard

Brief citations

Pent-2-enoic acid (CAS 626-98-2) https://chemicalindependence.com/chemical/626-98-2/ EPA CompTox (DSSTox): 626-98-2. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID40862321 US Census international trade: HS 291619 for CAS 626-98-2. Reporting year: 2024. https://usatrade.census.gov/