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Tetraphenylphosphonium tetraphenylborate

CAS 15525-15-2

Phosphonium, tetraphenyl-, tetraphenylborate(1-) (1:1)

EPA and Census publish no US supply data for this chemical.

Molecular structure of 15525-15-2
US productionNot reported
Top sourceNo public record

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

Where It Comes From

EPA and Census publish no US supply data for this chemical.

Why It Matters

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

Chemical Identity

CAS15525-15-2
PubChem CIDNot recorded
DTXSIDDTXSID80431398
FormulaC48H40BP
Mol. Weight658.63 g/mol
SMILESC1=CC=C(C=C1)[B-](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1.C1=CC=C(C=C1)[P+](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1

Data Sources

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Brief citations

Tetraphenylphosphonium tetraphenylborate (CAS 15525-15-2) https://chemicalindependence.com/chemical/15525-15-2/ EPA TSCA Inventory: CAS 15525-15-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory