1,2-Butadiene
Used in 4 industrial sectors tracked by the EPA.
US Production182.8K lbs
Import Value$246M
Import Volume147.9K lbs
Import Dependency45%
Top SourceCanada 51%
Where It Comes From
Customs basis: HS 290129 · basket
These shares come from HS customs code 290129, which covers 40 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 51%CanadaZA 32%South AfricaBR 6%BrazilJP 4%JapanIT 1%Italy
- Spain
- Ireland
- India
- United Kingdom
- Malaysia
- Dominican Republic
- Mexico
- Switzerland
- Australia
- South Korea
- Turkey
- Portugal
- Morocco
- Guyana
- Poland
- Netherlands
- Belgium
- Slovakia
- Ukraine
EPA-registered manufacturers (2)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Shell · GB United Kingdom
Shell 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.
Arlanxeo
Ineos Us I
Why It Matters
Sectors
EnergyPlastics & RubberConsumer ProductsCore Chemicals
Downstream UsesNo data available
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
Used in 4 sectors as 1 functional role.
- •Intermediate in Synthetic Rubber Manufacturing (100%)Processing as a reactant
- •Intermediate in Petrochemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Petroleum Refineries (100%)Processing as a reactant
Chemical Identity
CAS590-19-2
PubChem CID11535
DTXSIDDTXSID5027225
FormulaC4H6
Mol. Weight54.09 g/mol
SMILESCC=C=C
Data Sources
DTXSID50272252026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
115352026-04-06
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/11535/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/11535.json
590-19-22026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv
CAS 590-19-22026-04-25
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr_industrial.csv