Gases, petroleum, hydrogen-rich

CAS 68477-97-4

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$47M

Top sourceChile 37%

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 271129 · basket

EPA reports by year

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

These shares come from HS customs code 271129, which covers 112 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).

CL 37%ChileCA 32%CanadaKR 9%South KoreaGB 2%United KingdomCZ 1%Czech Republic

Poland
Guyana
United Arab Emirates
Turkey
Germany
Ireland
Netherlands
Belgium
Trinidad and Tobago
Japan

EPA-registered manufacturers (10)

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

Cenovus Energy · CA Canada

Ineos · GB United Kingdom

Shell Plc · GB United Kingdom

Bayport Polymers

Ineos Us I

Show all 10

Lima Refining

Par Hawaii Refining

Placid Refining

Shell Petroleum

Westlake

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.

Shell

Why It Matters

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

Chemical Identity

CAS68477-97-4

PubChem CIDNot recorded

DTXSIDDTXSID5028588

FormulaNot recorded

Mol. WeightNot recorded

SMILESNot recorded

Data Sources

EPA CompTox (DSSTox) · DTXSID5028588Retrieved 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

Gases, petroleum, hydrogen-rich (CAS 68477-97-4) https://chemicalindependence.com/chemical/68477-97-4/ EPA CompTox (DSSTox): DTXSID5028588. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID5028588 EPA Chemical Data Reporting: 68477-97-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 271129 for CAS 68477-97-4. Reporting year: 2024. https://usatrade.census.gov/