Cobalt oxide (Co2O3)

CAS 1308-04-9

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

Co₂O₃165.9 g/mol

no molecular structure to draw

US productionCBI

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

Import value, 2024$35M

Top sourceFinland 56%

At least one company claimed its 2019 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: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 282200 · narrow

EPA reports by year

2019: US production Confidential · Imports Confidential

These shares come from HS customs code 282200, which covers 6 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).

FI 56%FinlandGB 19%United KingdomBE 17%BelgiumTW 3%TaiwanCN 3%China

Hong Kong
South Korea
Czech Republic
Canada
Ukraine

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Basf

Why It Matters

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

Chemical Identity

CAS1308-04-9

PubChem CID10176285

DTXSIDDTXSID20893870

FormulaCo2O3

Mol. Weight165.865 g/mol

SMILES[O-2].[O-2].[O-2].[Co+3].[Co+3]

Data Sources

EPA CompTox (DSSTox) · DTXSID20893870Retrieved 2026-04-06
PubChem · compound 10176285Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Cobalt oxide (Co2O3) (CAS 1308-04-9) https://chemicalindependence.com/chemical/1308-04-9/ EPA CompTox (DSSTox): DTXSID20893870. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID20893870 PubChem: 10176285. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/10176285 EPA Chemical Data Reporting: 1308-04-9. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282200 for CAS 1308-04-9. Reporting year: 2024. https://usatrade.census.gov/