2-Oxepanone, polymer with 1,1'-methylenebis[4-isocyanatobenzene]
CAS 26761-25-1
EPA and Census publish no US supply data for this chemical.
US productionNot reported
Top sourceNo public record
EPA exempts this chemical from its production survey.
Why supply is unknownWhere 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
CAS26761-25-1
PubChem CIDNot recorded
DTXSIDDTXSID50949576
FormulaC21H20N2O4
Mol. Weight364.401 g/mol
SMILESO=C1CCCCCO1.O=C=NC1=CC=C(CC2=CC=C(C=C2)N=C=O)C=C1
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
2-Oxepanone, polymer with 1,1'-methylenebis[4-isocyanatobenzene] (CAS 26761-25-1) https://chemicalindependence.com/chemical/26761-25-1/ EPA TSCA Inventory: CAS 26761-25-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory