Cyclopentanone

CAS 120-92-3

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$150M

Top sourceIndia 25%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. 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

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

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

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

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

Slovakia
Malaysia
Netherlands
Ukraine
Singapore
Brazil
Romania
United Kingdom
Cyprus
Canada

EPA-registered importers (4)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Basf Se · DE Germany

Syensqo Sa · BE Belgium

Basf

Solvay

Why It Matters

Sectors

ElectronicsCore Chemicals

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 2 sectors as 2 functional roles.

•Solvent in Computer and Electronic Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant

Vendor Pricing

$0.07/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$675.33 / 10 kg

Purity99%

Vendors14 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

13 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$0.07	10 kg	99%
Combi-Blocks, Inc.	United States	$0.25	1 kg	98%
A2B Chem LLC	United States	$0.27	1 kg	98%
AA BLOCKS	United States	$0.28	1 kg	98%
Fluorochem UK	United Kingdom	$0.60	100 g	99%
Key Organics Ltd.	United Kingdom	$0.74	100 g	95%
Interbioscreen	Hong Kong	$24.00	10 g	95%
Labotest KG	Germany	$217.80	5000 mg	90%
Otava, Ltd.	Ukraine	$460.00	250 mg	90%
Otava, Ltd. (2 weeks)	Ukraine	$2724.00	50 mg	90%
Princeton BioMolecular Research (SC)	United States	$2900.00	100 mg	90%
Asinex	Netherlands	$8651.50	100 mg	90%
TimTec, LLC (back-ordered)	United States	$32000.00	15 mg	94%

Chemical Identity

CAS120-92-3

PubChem CID8452

DTXSIDDTXSID3029154

FormulaC5H8O

Mol. Weight84.12 g/mol

SMILESC1CCC(=O)C1

Data Sources

EPA CompTox (DSSTox) · DTXSID3029154Retrieved 2026-04-06
PubChem · compound 8452Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Cyclopentanone (CAS 120-92-3) https://chemicalindependence.com/chemical/120-92-3/ EPA CompTox (DSSTox): DTXSID3029154. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3029154 PubChem: 8452. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8452 EPA Chemical Data Reporting: 120-92-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 120-92-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291429 for CAS 120-92-3. Reporting year: 2024. https://usatrade.census.gov/