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1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone, polymer with 5,5'-carbonylbis[1,3-isobenzofurandione], 1,3-diisocyanatomethylbenzene and 4,4'-oxybis[benzenamine]

CAS 877238-37-4

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

Molecular structure of 877238-37-4
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

CAS877238-37-4
PubChem CIDNot recorded
DTXSIDDTXSID901013685
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone, polymer with 5,5'-carbonylbis[1,3-isobenzofurandione], 1,3-diisocyanatomethylbenzene and 4,4'-oxybis[benzenamine] (CAS 877238-37-4) https://chemicalindependence.com/chemical/877238-37-4/ EPA TSCA Inventory: CAS 877238-37-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory