Oxazole, 2-ethyl-4,5-dihydro-, homopolymer

CAS 25805-17-8

Molecular structure of 25805-17-8
US productionNot reported
Import value, 2024$516M
Top sourceGermany 22%

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 391190 · basket

These shares come from HS customs code 391190, which covers 36 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 22%GermanyJP 17%JapanCA 15%CanadaGB 14%United KingdomCN 9%China

Why It Matters

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

Chemical Identity

CAS25805-17-8
PubChem CIDNot recorded
DTXSIDDTXSID001011056
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

Brief citations

Oxazole, 2-ethyl-4,5-dihydro-, homopolymer (CAS 25805-17-8) https://chemicalindependence.com/chemical/25805-17-8/ EPA TSCA Inventory: CAS 25805-17-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 391190 for CAS 25805-17-8. Reporting year: 2024. https://usatrade.census.gov/