Benzene, ethenyl-, polymer with 1,3-butadiene and 1,1-dichloroethene
CAS 31669-55-3
EPA and Census publish no US supply data for this chemical.
EPA exempts this chemical from its production survey.
Why supply is unknownWhere It Comes From
Customs basis: HS 390450 · narrow
EPA and Census publish no US supply data for this chemical.
HS customs code 390450 covers 4 tracked chemicals in total. US Census does not break out this chemical's share, so the country-of-origin mix is not available. EPA CDR reports import dependency at the chemical level separately, shown above.
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
Benzene, ethenyl-, polymer with 1,3-butadiene and 1,1-dichloroethene (CAS 31669-55-3) https://chemicalindependence.com/chemical/31669-55-3/ EPA TSCA Inventory: CAS 31669-55-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory