Cesium

CAS 7440-46-2

Cs132.9 g/mol

no molecular structure to draw

US productionNot reported

Import value, 2024$44M

Top sourceChina 56%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Production is reported production, not a complete census of factories. 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

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

Why It Matters

SectorsNot recorded

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

Chemical Identity

CAS7440-46-2

PubChem CID5354618

DTXSIDDTXSID5036767

FormulaCs

Mol. Weight132.905452 g/mol

SMILES[Cs]

Data Sources

PubChem · compound 5354618Retrieved 2026-04-07
EPA TSCA InventoryRetrieved 2026-04-24
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Cesium (CAS 7440-46-2) https://chemicalindependence.com/chemical/7440-46-2/ PubChem: 5354618. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5354618 EPA TSCA Inventory: CAS 7440-46-2. Retrieved 2026-04-24. https://www.epa.gov/tsca-inventory FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 280519 for CAS 7440-46-2. Reporting year: 2024. https://usatrade.census.gov/