Distyrenated phenol

CAS 25640-70-4

U.S. production volumes are classified as confidential business information.

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$33M

Top sourceGermany 29%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

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

Where It Comes From

Customs basis: HS 290719 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 290719, which covers 116 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).

DE 29%GermanyIN 26%IndiaCN 19%ChinaIT 9%ItalyCH 5%Switzerland

Mexico
Poland
South Korea
Canada
Russia
Ukraine
Hong Kong
Malaysia
United Kingdom

EPA-registered importers (2)

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

Syensqo Sa · BE Belgium

Solvay

Why It Matters

Sectors

Core Chemicals

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

Industrial Uses

•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant

Vendor Pricing

$3472.80/gA2B Chem LLC (1 week)

CountryUnited States

Pack$8682.00 / 2.5 g

Purity95%

Vendors1 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS25640-70-4

PubChem CID102877

DTXSIDDTXSID801014854

FormulaC22H22O

Mol. Weight302.4 g/mol

SMILESCC(C1=CC=CC=C1)C2=CC(=C(C=C2)O)C(C)C3=CC=CC=C3

Data Sources

EPA CompTox (DSSTox) · DTXSID801014854Retrieved 2026-04-06
PubChem · compound 102877Retrieved 2026-04-06
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

Distyrenated phenol (CAS 25640-70-4) https://chemicalindependence.com/chemical/25640-70-4/ EPA CompTox (DSSTox): DTXSID801014854. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID801014854 PubChem: 102877. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/102877 EPA Chemical Data Reporting: 25640-70-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25640-70-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290719 for CAS 25640-70-4. Reporting year: 2024. https://usatrade.census.gov/