2-Butenedioic acid (2Z)-, polymer with chloroethene and ethenyl acetate
CAS 9005-09-8
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 390430 · narrow
EPA and Census publish no US supply data for this chemical.
HS customs code 390430 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
2-Butenedioic acid (2Z)-, polymer with chloroethene and ethenyl acetate (CAS 9005-09-8) https://chemicalindependence.com/chemical/9005-09-8/ EPA TSCA Inventory: CAS 9005-09-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory