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Ethyltributylphosphonium diethylphosphate

CAS 20445-94-7

Phosphonium, tributylethyl-, diethyl phosphate (1:1)

U.S. production volumes are classified as confidential business information.

Molecular structure of 20445-94-7
US productionCBI
Top sourceNo public record

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. US production volume is confidential. Production reporting year: 2023.

Where It Comes From

EPA reports by year
2023
US production Confidential · Imports Confidential
Domestic parents -- activity not disclosed (1)
Solvay

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS20445-94-7
PubChem CIDNot recorded
DTXSIDDTXSID4049244
FormulaC18H42O4P2
Mol. Weight384.478 g/mol
SMILESCCOP([O-])(=O)OCC.CCCC[P+](CC)(CCCC)CCCC

Data Sources

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Brief citations

Ethyltributylphosphonium diethylphosphate (CAS 20445-94-7) https://chemicalindependence.com/chemical/20445-94-7/ EPA TSCA Inventory: CAS 20445-94-7. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 20445-94-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting