Flag of the United StatesAmerican Chemical Independence

1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone, polymer with 5,5'-oxybis[1,3-isobenzofurandione] and 4,4'-[1,3-phenylenebis(oxy)]bis[benzenamine]

CAS 137049-88-8

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

Molecular structure of 137049-88-8
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

CAS137049-88-8
PubChem CIDNot recorded
DTXSIDDTXSID001013452
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

← Back to Dashboard

Brief citations

1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone, polymer with 5,5'-oxybis[1,3-isobenzofurandione] and 4,4'-[1,3-phenylenebis(oxy)]bis[benzenamine] (CAS 137049-88-8) https://chemicalindependence.com/chemical/137049-88-8/ EPA TSCA Inventory: CAS 137049-88-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory