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1-Butene

CAS 106-98-9

U.S. production volumes are classified as confidential business information.

Molecular structure of 106-98-9
US productionCBI
Import value, 2024$286K
Top sourceSouth Korea 61%

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 290123 · narrow

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 290123, which covers 5 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
KR 61%South KoreaCN 39%China
EPA-registered manufacturers (9)
Shell Plc · GB United Kingdom
Shin-Etsu Chemical · JP Japan
Chevron
Chevron Phillips Chemical
Gulf Coast Growth Ventures
Show all 9
Next Wave Energy Partners
Shell Petroleum
Shintech Louisiana
Tpc Group
EPA-registered importers (1)
Tartan Oil

Why It Matters

Sectors
EnergyPlastics & RubberConsumer ProductsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 6 sectors as 3 functional roles.

  • •Intermediate in Petrochemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Monomers in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
  • •Intermediate in Wholesale and Retail Trade (10%)Processing—repackaging
  • •Fuel in Petroleum Refineries (10%)Processing—repackaging
  • •Intermediate in Plastics Material and Resin Manufacturing (30%)Processing as a reactant
  • •Intermediate in Synthetic Rubber Manufacturing (10%)Processing as a reactant
  • •Fuel in Wholesale and Retail Trade (10%)Processing—repackaging
  • •Intermediate in All Other Basic Organic Chemical Manufacturing (10%)Processing as a reactant
  • •Intermediate in Petroleum Refineries (100%)Processing as a reactant

Vendor Pricing

$0.30/gA2B Chem LLC (1 week)
CountryUnited States
Pack$148.00 / 500 g
PurityNot recorded
Vendors5 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

4 more vendors
VendorCountry$/gPackPurity
AA BLOCKS (1 week)United States$0.30500 g—
Sigma-Aldrich (Rush Stock)Germany$0.70400 g99%
Sigma-AldrichGermany$0.70400 g99%
Labotest KGGermany$453.001000 mg90%

Chemical Identity

CAS106-98-9
PubChem CID7844
DTXSIDDTXSID1026746
FormulaC4H8
Mol. Weight56.11 g/mol
SMILESCCC=C

Data Sources

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Brief citations

1-Butene (CAS 106-98-9) https://chemicalindependence.com/chemical/106-98-9/ EPA CompTox (DSSTox): DTXSID1026746. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1026746 PubChem: 7844. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/7844 EPA Chemical Data Reporting: 106-98-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 106-98-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290123 for CAS 106-98-9. Reporting year: 2024. https://usatrade.census.gov/