Ferrous oxide

CAS 1345-25-1

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

FeO71.8 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$542M

Import volume822.1K lb

Top sourceGermany 26%

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 282110, 320649 · basket

EPA reports by year

2023: US production Confidential · Imports 822.1K lb
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 282110, 320649, which covers 49 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).

DE 26%GermanyCN 19%ChinaCA 17%CanadaMX 8%MexicoIN 5%India

Colombia
Sweden
Taiwan
Czech Republic
Romania
Egypt
Israel
Slovakia
Turkey
Norway
Ireland
Malaysia
Poland
South Africa
Switzerland
Finland
Denmark
United Arab Emirates
Cyprus
Greece
Singapore
Moldova
Slovenia
New Zealand
Indonesia
Hungary
Australia
Peru
Pakistan
Portugal
Honduras
Tunisia

EPA-registered manufacturers (6)

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

Basf

Befesa Holding Us

Mcwane

Mcwane Ductile New Jersey

Show all 6

Precision Castparts

EPA-registered importers (2)

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

Clariant International · CH Switzerland

Clariant

Why It Matters

Sectors

AgricultureConstructionCore 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.

•Catalyst in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Use—non-incorporative activities
•Solids separation (precipitating) agent, not otherwise specified in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS1345-25-1

PubChem CID449809

DTXSIDDTXSID1041976

FormulaFeO

Mol. Weight71.84 g/mol

SMILES[O-2].[Fe+2]

Data Sources

EPA CompTox (DSSTox) · DTXSID1041976Retrieved 2026-04-06
PubChem · compound 449809Retrieved 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

← Back to Dashboard ← Back to Agriculture

Brief citations

Ferrous oxide (CAS 1345-25-1) https://chemicalindependence.com/chemical/1345-25-1/ EPA CompTox (DSSTox): DTXSID1041976. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1041976 PubChem: 449809. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/449809 EPA Chemical Data Reporting: 1345-25-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1345-25-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282110,320649 for CAS 1345-25-1. Reporting year: 2024. https://usatrade.census.gov/