4-Methyl-1-pentene homopolymer

CAS 25068-26-2

1-Pentene, 4-methyl-, homopolymer

US productionNot reported

Import value, 2024$178M

Top sourceCanada 20%

EPA exempts this chemical from its production survey.

Production 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 390290 · basket

These shares come from HS customs code 390290, which covers 17 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

CA 20%CanadaIT 17%ItalyKR 15%South KoreaJP 13%JapanNL 8%Netherlands

Malaysia
Kazakhstan
India
United Kingdom
Spain
Sweden
Turkey
United Arab Emirates
Poland
Switzerland
Australia
Portugal
Ireland
Brazil
Denmark
Austria
Senegal

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS25068-26-2

PubChem CIDNot recorded

DTXSIDDTXSID001010991

Formula(C6H12)n

Mol. WeightNot recorded

SMILESCC(C)CC(-*)C-* |$;;;;;star_e;;star_e$,Sg:n:0,1,3,4,6,2::ht|

Data Sources

EPA TSCA InventoryRetrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

4-Methyl-1-pentene homopolymer (CAS 25068-26-2) https://chemicalindependence.com/chemical/25068-26-2/ EPA TSCA Inventory: CAS 25068-26-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 390290 for CAS 25068-26-2. Reporting year: 2024. https://usatrade.census.gov/