4-tert-Butylphenol formaldehyde resin

CAS 25085-50-1

Formaldehyde, polymer with 4-(1,1-dimethylethyl)phenol

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

US productionZero

Import value, 2024$124M

Import volume249.1K lb

Import dependency100%

Top sourceCanada 53%

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.

4-tert-Butylphenol formaldehyde resin · US import value by year

2013: $148M · Peak 2014: $157M · 2024: $124M · 2025: $111M

Where It Comes From

Customs basis: HS 390940 · basket

EPA reports by year

2023: US production Zero · Imports 249.1K lb

These shares come from HS customs code 390940, which covers 10 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 53%CanadaSG 9%SingaporeIN 7%IndiaDE 7%GermanyKR 5%South Korea

United Kingdom
Hong Kong
Switzerland
Slovenia
Austria
Taiwan
Norway
Czech Republic
Panama
Netherlands
Turkey
Poland
Ireland

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Sovereign Chemical

Why It Matters

Sectors

Plastics & Rubber

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Chemical Identity

CAS25085-50-1

PubChem CIDNot recorded

DTXSIDDTXSID7047805

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA TSCA InventoryRetrieved 2026-04-29
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

4-tert-Butylphenol formaldehyde resin (CAS 25085-50-1) https://chemicalindependence.com/chemical/25085-50-1/ EPA TSCA Inventory: CAS 25085-50-1. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 25085-50-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25085-50-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 390940 for CAS 25085-50-1. Reporting year: 2024. https://usatrade.census.gov/