Phenyl didecyl phosphite

CAS 1254-78-0

Phosphorous acid, didecyl phenyl ester

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

Molecular structure of 1254-78-0
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

CAS1254-78-0
PubChem CIDNot recorded
DTXSIDDTXSID7051634
FormulaC26H47O3P
Mol. Weight438.633 g/mol
SMILESCCCCCCCCCCOP(OCCCCCCCCCC)OC1=CC=CC=C1

Data Sources

Brief citations

Phenyl didecyl phosphite (CAS 1254-78-0) https://chemicalindependence.com/chemical/1254-78-0/ EPA TSCA Inventory: CAS 1254-78-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory