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Carbonic acid, diphenyl ester, polymer with 1,4-butanediol, 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatobenzene]

CAS 67391-34-8

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

Molecular structure of 67391-34-8
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

CAS67391-34-8
PubChem CIDNot recorded
DTXSIDDTXSID501368373
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Carbonic acid, diphenyl ester, polymer with 1,4-butanediol, 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatobenzene] (CAS 67391-34-8) https://chemicalindependence.com/chemical/67391-34-8/ EPA TSCA Inventory: CAS 67391-34-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory