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1,3-Isobenzofurandione, polymer with 2-(chloromethyl)oxirane and 4,4'-(1-methylethylidene)bis[phenol], ester with 2-oxepanone homopolymer 2-[(1-oxo-2-propen-1-yl)oxy]ethyl ester

CAS 220681-83-4

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

Molecular structure of 220681-83-4
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

CAS220681-83-4
PubChem CIDNot recorded
DTXSIDDTXSID201013810
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

1,3-Isobenzofurandione, polymer with 2-(chloromethyl)oxirane and 4,4'-(1-methylethylidene)bis[phenol], ester with 2-oxepanone homopolymer 2-[(1-oxo-2-propen-1-yl)oxy]ethyl ester (CAS 220681-83-4) https://chemicalindependence.com/chemical/220681-83-4/ EPA TSCA Inventory: CAS 220681-83-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory