Hydrocarbons, C4, ethylene-manuf.-by-product
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$1.1B
Top SourceCanada 94%
The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.
Where It Comes From
Customs basis: HS 271113, 271114, 271119, 271129 · basket
These shares come from HS customs code 271113, 271114, 271119, 271129, which covers 103 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.
Source Countries
Country of origin for US imports, from Census customs data (2023).
CA 94%CanadaKR 2%South KoreaCL 2%Chile
- Mexico
- Italy
- China
- United Kingdom
- Czech Republic
- United Arab Emirates
- Poland
- Guyana
- Taiwan
- Turkey
- Germany
- Netherlands
- Philippines
- Trinidad and Tobago
- Sweden
- Ireland
- Belgium
- Japan
- Qatar
- Austria
- Switzerland
EPA-registered manufacturers (9)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Mubadala Investment Co Pjsc (Mubadala) · AE United Arab Emirates
Saudi Arabian Oil · SA Saudi Arabia
Formosa Plastics
Huntsman
Indorama Ventures Olefins
Show all 9
Lyondell Chemical
Motiva Enterprises
Nc Holdings Usa
The Dow Chemical
EPA-registered importers (4)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Mubadala Investment Co Pjsc (Mubadala) · AE United Arab Emirates
Nc Holdings Usa
The Dow Chemical
Tpc Group
Why It Matters
No data available
Chemical Identity
CAS68476-52-8
PubChem CIDNo data available
DTXSIDDTXSID9028540
FormulaNo data available
Mol. WeightNo data available
SMILESNo data available
Data Sources
DTXSID90285402026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
68476-52-82026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv