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2(3H)-Furanone, 5-ethenyldihydro-5-methyl-

CAS 1073-11-6

Molecular structure of 1073-11-6
US productionNot reported
Import value, 2024$286M
Top sourceChina 48%

EPA lists this chemical as inactive, meaning no company reported making, importing or processing it in the US from 2006 to 2016.

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

CAS1073-11-6
PubChem CIDNot recorded
DTXSIDDTXSID40862523
FormulaC7H10O2
Mol. Weight126.155 g/mol
SMILESCC1(CCC(=O)O1)C=C

Data Sources

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Brief citations

2(3H)-Furanone, 5-ethenyldihydro-5-methyl- (CAS 1073-11-6) https://chemicalindependence.com/chemical/1073-11-6/ EPA CompTox (DSSTox): 1073-11-6. Retrieved 2026-04-29. https://comptox.epa.gov/dashboard/chemical/details/DTXSID40862523 EPA TSCA Inventory: CAS 1073-11-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293220 for CAS 1073-11-6. Reporting year: 2024. https://usatrade.census.gov/