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2-Pentylidenecyclopentanone

CAS 16424-35-4

Cyclopentanone, 2-pentylidene-

Molecular structure of 16424-35-4
US productionNot reported
Import value, 2024$150M
Top sourceIndia 25%

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 291429 · basket

These shares come from HS customs code 291429, which covers 163 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 25%IndiaES 18%SpainCN 12%ChinaIL 11%IsraelCH 9%Switzerland

Why It Matters

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

Chemical Identity

CAS16424-35-4
PubChem CIDNot recorded
DTXSIDDTXSID3041821
FormulaC10H16O
Mol. Weight152.237 g/mol
SMILESCCCCC=C1CCCC1=O

Data Sources

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Brief citations

2-Pentylidenecyclopentanone (CAS 16424-35-4) https://chemicalindependence.com/chemical/16424-35-4/ EPA TSCA Inventory: CAS 16424-35-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 291429 for CAS 16424-35-4. Reporting year: 2024. https://usatrade.census.gov/