1-Butene, polymer with 1-propene
CAS 29160-13-2
EPA exempts this chemical from its production survey.
Why supply is unknownProduction is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.
Where It Comes From
Customs basis: HS 390230, 390290 · basket
These shares come from HS customs code 390230, 390290, which covers 23 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Spain
- Colombia
- Finland
- United Kingdom
- Malaysia
- Czech Republic
- Israel
- Argentina
- Hungary
- India
- Kazakhstan
- Slovakia
- Sweden
- Denmark
- Switzerland
- United Arab Emirates
- Australia
- Saudi Arabia
- Ireland
- Vietnam
- Turkey
- Poland
- Ghana
- Portugal
- Bulgaria
- Norway
- Senegal
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
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
1-Butene, polymer with 1-propene (CAS 29160-13-2) https://chemicalindependence.com/chemical/29160-13-2/ EPA TSCA Inventory: CAS 29160-13-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 390230,390290 for CAS 29160-13-2. Reporting year: 2024. https://usatrade.census.gov/