Samarium(III) oxide

CAS 12060-58-1

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

O₃Sm₂348.7 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$148M

Import volume110 lb

Top sourceChina 75%

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 284690 · basket

EPA reports by year

2023: US production Not published · Imports Not published
2019: US production Confidential · Imports 110 lb

These shares come from HS customs code 284690, which covers 26 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 75%ChinaIT 6%ItalyJP 5%JapanAT 4%AustriaZA 3%South Africa

Israel
Liechtenstein
Russia
Armenia
Vietnam
Norway
Switzerland
Singapore
United Kingdom
Belgium
Czech Republic

EPA-registered manufacturers (1)

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

Mp Mine Operations

Why It Matters

Sectors

Core 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

•Catalyst in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS12060-58-1

PubChem CID159425

DTXSIDDTXSID4051611

FormulaO3Sm2

Mol. Weight348.7 g/mol

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

Data Sources

EPA CompTox (DSSTox) · DTXSID4051611Retrieved 2026-04-06
PubChem · compound 159425Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · 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 Core Chemicals

Brief citations

Samarium(III) oxide (CAS 12060-58-1) https://chemicalindependence.com/chemical/12060-58-1/ EPA CompTox (DSSTox): DTXSID4051611. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4051611 PubChem: 159425. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/159425 EPA Chemical Data Reporting: 12060-58-1. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 12060-58-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 284690 for CAS 12060-58-1. Reporting year: 2024. https://usatrade.census.gov/