Thallium

CAS 7440-28-0

Tl204.4 g/mol

no molecular structure to draw

US productionNot reported

Import value, 2024$4K

Top sourceDominican Republic 100%

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.

Where It Comes From

Customs basis: HS 811251, 811252, 811259 · exact

Source Countries

Country of origin for US imports, from Census customs data (2024).

DO 100%Dominican Republic

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

CAS7440-28-0

PubChem CID5359464

DTXSIDDTXSID2036035

FormulaTl

Mol. Weight204.383 g/mol

SMILES[Tl]

Data Sources

PubChem · compound 5359464Retrieved 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

Thallium (CAS 7440-28-0) https://chemicalindependence.com/chemical/7440-28-0/ PubChem: 5359464. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/5359464 EPA TSCA Inventory: CAS 7440-28-0. 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 811251,811252,811259 for CAS 7440-28-0. Reporting year: 2024. https://usatrade.census.gov/