Lanthanum

CAS 7439-91-0

EPA’s 2023 records show zero U.S. production of this chemical.

La138.9 g/mol

no molecular structure to draw

US productionZero

Import value, 2024$5M

Import volumeCBI

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

Top sourceChina 78%

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. 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 280530 · basket

EPA reports by year

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

These shares come from HS customs code 280530, which covers 16 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 78%ChinaCA 9%CanadaGB 8%United KingdomJP 2%JapanNL 1%Netherlands

Hong Kong
Turkey
Czech Republic
Germany
Australia

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.

Ferroglobe Plc · GB United Kingdom

Ferroglobe Usa

Why It Matters

Sectors

Metals & Mining

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.

•Alloys in Fabricated Metal Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in Primary Metal Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS7439-91-0

PubChem CID23926

DTXSIDDTXSID0064676

FormulaLa

Mol. Weight138.9055 g/mol

SMILES[La]

Data Sources

EPA CompTox (DSSTox) · DTXSID0064676Retrieved 2026-04-06
PubChem · compound 23926Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Lanthanum (CAS 7439-91-0) https://chemicalindependence.com/chemical/7439-91-0/ EPA CompTox (DSSTox): DTXSID0064676. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0064676 PubChem: 23926. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23926 EPA Chemical Data Reporting: 7439-91-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 7439-91-0. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 280530 for CAS 7439-91-0. Reporting year: 2024. https://usatrade.census.gov/