2(3H)-Furanone, dihydro-4-methyl-5-pentyl-

CAS 33673-62-0

US productionNot reported

Import value, 2024$286M

Top sourceChina 48%

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 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

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

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

Mexico
Austria
Indonesia
Czech Republic
Slovakia
Malaysia
Israel
Poland
Vietnam
Ukraine
South Africa
Singapore
Russia
Lithuania
Hungary
Belarus
Brazil
Australia

Why It Matters

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

Chemical Identity

CAS33673-62-0

PubChem CIDNot recorded

DTXSIDDTXSID70865683

FormulaC10H18O2

Mol. Weight170.252 g/mol

SMILESCCCCCC1OC(=O)CC1C

Data Sources

EPA TSCA InventoryRetrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

2(3H)-Furanone, dihydro-4-methyl-5-pentyl- (CAS 33673-62-0) https://chemicalindependence.com/chemical/33673-62-0/ EPA TSCA Inventory: CAS 33673-62-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293220 for CAS 33673-62-0. Reporting year: 2024. https://usatrade.census.gov/