Epoxy resin

CAS 25085-99-8

Oxirane, 2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bis-, homopolymer

Molecular structure of 25085-99-8
US productionNot reported
Import value, 2024$524M
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 390729 · basket

These shares come from HS customs code 390729, which covers 46 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
KR 27%South KoreaDE 13%GermanyCN 11%ChinaJP 9%JapanCH 8%Switzerland

Why It Matters

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

Chemical Identity

CAS25085-99-8
PubChem CIDNot recorded
DTXSIDDTXSID3049590
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

Brief citations

Epoxy resin (CAS 25085-99-8) https://chemicalindependence.com/chemical/25085-99-8/ EPA TSCA Inventory: CAS 25085-99-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 390729 for CAS 25085-99-8. Reporting year: 2024. https://usatrade.census.gov/