Benzene, tetrapropylene-

CAS 25265-78-5

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$68M

Top sourceIndia 35%

At least one company claimed its 2019 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: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290290 · basket

EPA reports by year

2023: US production Not published · Imports Not published
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 290290, which covers 171 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).

IN 35%IndiaTW 11%TaiwanES 10%SpainDE 10%GermanyCN 8%China

Czech Republic
Netherlands
Switzerland
Pakistan
United Kingdom
Austria
Denmark
Indonesia
Lithuania
Hong Kong
Finland

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Shrieve Chemical

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.

Pilot Chemical

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

•Hydraulic fluids in All Other Chemical Product and Preparation Manufacturing (100%)Processing—repackaging

Chemical Identity

CAS25265-78-5

PubChem CID91365

DTXSIDDTXSID3067073

FormulaC18H30

Mol. Weight246.4 g/mol

SMILESCCCC1=CC(=C(C(=C1)CCC)CCC)CCC

Data Sources

EPA CompTox (DSSTox) · DTXSID3067073Retrieved 2026-04-06
PubChem · compound 91365Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · 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

Benzene, tetrapropylene- (CAS 25265-78-5) https://chemicalindependence.com/chemical/25265-78-5/ EPA CompTox (DSSTox): DTXSID3067073. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3067073 PubChem: 91365. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/91365 EPA Chemical Data Reporting: 25265-78-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 25265-78-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290290 for CAS 25265-78-5. Reporting year: 2024. https://usatrade.census.gov/