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Phosfolan

Drug ingredient

CAS 947-02-4

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

Molecular structure of 947-02-4
US productionNot reported
Import value, 2024$6.4B
Top sourceSingapore 36%

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 293499 · basket

These shares come from HS customs code 293499, which covers 575 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
SG 36%SingaporeIE 23%IrelandCN 11%ChinaCH 6%SwitzerlandIN 5%India
1 FDA-registered drug labeler
Professional Complementary Health Formulas

Why It Matters

Sectors
Health
Downstream Uses

Appears in 2 drug and cosmetic product listings (FDA).

  • •Toxagent Detox 6035
  • •Organophosphate Combination 9309
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS947-02-4
PubChem CID13689
DTXSIDDTXSID1042285
FormulaC7H14NO3PS2
Mol. Weight255.3 g/mol
SMILESCCOP(=O)(N=C1SCCS1)OCC

Data Sources

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Brief citations

Phosfolan (CAS 947-02-4) https://chemicalindependence.com/chemical/947-02-4/ PubChem: 13689. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/13689 EPA TSCA Inventory: CAS 947-02-4. 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 293499 for CAS 947-02-4. Reporting year: 2024. https://usatrade.census.gov/