Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene

CAS 25038-32-8

Molecular structure of 25038-32-8
US productionNot reported
Import value, 2024$543M
Top sourceSouth Korea 27%

EPA exempts this chemical from its production survey.

Why supply is unknown

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, 390390 · basket

These shares come from HS customs code 390290, 390390, which covers 25 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
KR 27%South KoreaMX 18%MexicoJP 10%JapanCA 8%CanadaIT 7%Italy

Why It Matters

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

Chemical Identity

CAS25038-32-8
PubChem CIDNot recorded
DTXSIDDTXSID40947900
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

Brief citations

Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene (CAS 25038-32-8) https://chemicalindependence.com/chemical/25038-32-8/ EPA TSCA Inventory: CAS 25038-32-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 390290,390390 for CAS 25038-32-8. Reporting year: 2024. https://usatrade.census.gov/