Strontium

CAS 7440-24-6

Used in 1 industrial sector tracked by the EPA.

Sr87.6 g/mol

no molecular structure to draw

US production2.4M lb

Import value, 2024$44M

Import volumeCBI

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

Top sourceChina 56%

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 280519 · narrow

EPA reports by year

2023: US production 2.4M lb · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 280519, 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).

CN 56%ChinaDE 25%GermanyIT 18%Italy

United Kingdom
Turkey
Canada
Switzerland
Japan
Madagascar
Norway
South Korea

EPA-registered manufacturers (2)

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

Real Alloy Holding

Real Alloy Recycling

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.

Ferroglobe Plc · GB United Kingdom

Fci

Ferroglobe Usa

Rio Tinto America Holdings

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.

•Intermediate in Primary Metal Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Alloys in Primary Metal Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Alloys in Fabricated Metal Product Manufacturing (60%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS7440-24-6

PubChem CID5359327

DTXSIDDTXSID3024312

FormulaSr

Mol. Weight87.62 g/mol

SMILES[Sr]

Data Sources

EPA CompTox (DSSTox) · DTXSID3024312Retrieved 2026-04-06
PubChem · compound 5359327Retrieved 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

Strontium (CAS 7440-24-6) https://chemicalindependence.com/chemical/7440-24-6/ EPA CompTox (DSSTox): DTXSID3024312. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3024312 PubChem: 5359327. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/5359327 EPA Chemical Data Reporting: 7440-24-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 7440-24-6. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 280519 for CAS 7440-24-6. Reporting year: 2024. https://usatrade.census.gov/