Hydrocarbons, C4-8

CAS 68956-52-5

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$25.7B

Top sourceCanada 18%

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 271012 · basket

EPA reports by year

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

These shares come from HS customs code 271012, which covers 105 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 18%CanadaNL 14%NetherlandsIN 10%IndiaIT 6%ItalyGB 6%United Kingdom

Germany
Bulgaria
Peru
United Arab Emirates
Colombia
Singapore
Mexico
Chile
Nigeria
Bahrain
Kuwait
Australia
Qatar
Greece
Poland
Malaysia
Romania
Denmark
Senegal
Jamaica
Latvia
Dominican Republic
South Africa
Austria

EPA-registered manufacturers (4)

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

Indorama Netherlands Bv · NL Netherlands

Ineos · GB United Kingdom

Indorama Ventures Usa Holdings

Ineos Us Petrochem

Domestic parents -- activity not disclosed (2)

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

Eastman Chemical

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.

Total Se · FR France

Total Holdings Usa

Why It Matters

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

Chemical Identity

CAS68956-52-5

PubChem CIDNot recorded

DTXSIDDTXSID7028934

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID7028934Retrieved 2026-04-06
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

Hydrocarbons, C4-8 (CAS 68956-52-5) https://chemicalindependence.com/chemical/68956-52-5/ EPA CompTox (DSSTox): DTXSID7028934. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7028934 EPA Chemical Data Reporting: 68956-52-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 271012 for CAS 68956-52-5. Reporting year: 2024. https://usatrade.census.gov/