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Phenol, 4,4'-(9H-fluoren-9-ylidene)bis-, polymer with 2,2'-[(3,3',5,5'-tetramethyl[1,1'-biphenyl]-4,4'-diyl)bis(oxymethylene)]bis[oxirane]

CAS 142739-74-0

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

Molecular structure of 142739-74-0
US productionNot reported
Top sourceNo public record

EPA exempts this chemical from its production survey.

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

CAS142739-74-0
PubChem CIDNot recorded
DTXSIDDTXSID001352943
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Phenol, 4,4'-(9H-fluoren-9-ylidene)bis-, polymer with 2,2'-[(3,3',5,5'-tetramethyl[1,1'-biphenyl]-4,4'-diyl)bis(oxymethylene)]bis[oxirane] (CAS 142739-74-0) https://chemicalindependence.com/chemical/142739-74-0/ EPA TSCA Inventory: CAS 142739-74-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory