Alkanes, C4-12

CAS 68333-81-3

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 1.2B lb · Imports 37.4K lb

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 (1)

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

Calumet

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.

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.

Kureha · JP Japan

Kureha America

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

Industrial Uses

•Filler in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS68333-81-3

PubChem CIDNot recorded

DTXSIDDTXSID5029429

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID5029429Retrieved 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

Alkanes, C4-12 (CAS 68333-81-3) https://chemicalindependence.com/chemical/68333-81-3/ EPA CompTox (DSSTox): DTXSID5029429. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5029429 EPA Chemical Data Reporting: 68333-81-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 68333-81-3. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 271012 for CAS 68333-81-3. Reporting year: 2024. https://usatrade.census.gov/