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Dinonylphenyl bis(nonylphenyl) phosphite

CAS 54771-30-1

Phosphorous acid, dinonylphenyl bis(nonylphenyl) ester

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

Molecular structure of 54771-30-1
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

CAS54771-30-1
PubChem CIDNot recorded
DTXSIDDTXSID101014958
FormulaC54H87O3P
Mol. Weight815.261 g/mol
SMILESCCCCCCCCCC1=CC=CC=C1OP(OC1=CC=CC=C1CCCCCCCCC)OC1=CC=CC(CCCCCCCCC)=C1CCCCCCCCC

Data Sources

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Brief citations

Dinonylphenyl bis(nonylphenyl) phosphite (CAS 54771-30-1) https://chemicalindependence.com/chemical/54771-30-1/ EPA TSCA Inventory: CAS 54771-30-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory