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Sulfix 6

CAS 25608-33-7

2-Propenoic acid, 2-methyl-, butyl ester, polymer with methyl 2-methyl-2-propenoate

Companies reported imports and no US production of this chemical to EPA for 2023.

Molecular structure of 25608-33-7
US productionZero
Import value, 2024$1.1B
Import volume209.4K lb
Import dependency100%
Top sourceJapan 21%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Sulfix 6 · US import value by year
$691M2013$1.4B2022$1.1B2024$1.0B2025

2013: $691M · Peak 2022: $1.4B · 2024: $1.1B · 2025: $1.0B

Where It Comes From

Customs basis: HS 390690 · basket

EPA reports by year
2023
US production Zero · Imports 209.4K lb

These shares come from HS customs code 390690, which covers 59 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
JP 21%JapanCA 18%CanadaDE 13%GermanyIT 8%ItalyMX 8%Mexico
EPA-registered importers (1)
Brenntag

Why It Matters

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

Chemical Identity

CAS25608-33-7
PubChem CIDNot recorded
DTXSIDDTXSID00891910
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

Sulfix 6 (CAS 25608-33-7) https://chemicalindependence.com/chemical/25608-33-7/ EPA TSCA Inventory: CAS 25608-33-7. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 25608-33-7. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 390690 for CAS 25608-33-7. Reporting year: 2024. https://usatrade.census.gov/