Flag of the United StatesAmerican Chemical Independence

2(5H)-Furanone

CAS 497-23-4

Molecular structure of 497-23-4
US productionNot reported
Import value, 2024$286M
Top sourceChina 48%

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 293220 · basket

These shares come from HS customs code 293220, which covers 151 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 48%ChinaIN 15%IndiaJP 7%JapanGB 7%United KingdomCH 7%Switzerland

Why It Matters

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

Chemical Identity

CAS497-23-4
PubChem CIDNot recorded
DTXSIDDTXSID7075422
FormulaC4H4O2
Mol. Weight84.074 g/mol
SMILESO=C1OCC=C1

Data Sources

← Back to Dashboard

Brief citations

2(5H)-Furanone (CAS 497-23-4) https://chemicalindependence.com/chemical/497-23-4/ EPA CompTox (DSSTox): 497-23-4. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7075422 US Census international trade: HS 293220 for CAS 497-23-4. Reporting year: 2024. https://usatrade.census.gov/