Isobutane
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$917M
Top SourceCanada 95%
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 290110 · basket
These shares come from HS customs code 290110, which covers 24 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 95%CanadaDE 2%GermanyBR 1%BrazilKR 1%South Korea
- China
- Spain
- Italy
- Japan
- Israel
- Malaysia
- United Kingdom
- Austria
- Portugal
- India
- Poland
- Netherlands
- Turkey
- Switzerland
- Belgium
- Greece
- Sweden
EPA-registered manufacturers (46)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Basf Se · DE Germany
Steel Reef Infrastructure · CA Canada
Aux Sable Liquid Products
Basf
California Resources
Show all 46
Chevron
Chevron Phiillips Chemical Sweeny/Old Ocean
Citgo Holding
Cvr Energy
Dcp Midstream
Delek Refining
Delek Us Holdings
Delta Air Lines
Dominion Energy
Energy Transfer
Enterprise Gas Processing
Enterprise Products Operating
Etc Texas Pipeline
ExxonMobil
Formosa Plastics
Hollyfrontier
Kinder Morgan, Copano Energy
Koch Industries
Lambda Energy Resources Llc.
Lone Star Ngl
Lyondell Chemical
Marathon Petroleum
Mplx
Oneok
Par Pacific Holdings
Pbf Energy
Pbf Holding
Pes Ultimate Holdings
Phillips 66
Plains All American Pipeline
Sc Johnson & Son
Shell
Shell Chemical
Shell Deer Park Refining
Steel Reef Burke
Tallgrass Development
Targa Resources
The Williams Companies
Tpc Group
True Oil
Wrb Refining Lp Wood River Refinery
EPA-registered importers (9)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
A-Gas
Calumet Specialty Products Partners
Diversey
Honeywell International
Nouryon Pulp And Performance Chemicals
Show all 9
Par Pacific Holdings
Phillips 66
Plains All American Pipeline
United Refining
Why It Matters
Sectors
AgricultureEnergyElectronicsConstructionMetals & MiningPlastics & 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 17 sectors as 13 functional roles.
- •Refrigerants in Industrial Gas ManufacturingProcessing—repackaging
- •Energy Releasers (explosives, motive propellant) in Mining (except Oil and Gas) and support activitiesProcessing—incorporation into formulation, mixture, or reaction product
- •Fuels and fuel additives in Petrochemical Manufacturing (100%)Processing—repackaging
- •Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
- •Fuel agents in Petroleum Refineries (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Fuel in Petroleum RefineriesProcessing—incorporation into formulation, mixture, or reaction product
- •Catalyst in Petroleum Refineries (100%)Use—non-incorporative activities
- •Intermediate in Petroleum Refineries (90%)Processing as a reactant
- •Intermediate in Wholesale and Retail Trade (10%)Processing—repackaging
- •Fuel in All other Petroleum and Coal Products Manufacturing (80%)Processing—incorporation into formulation, mixture, or reaction product
- •Refrigerants in Petroleum Refineries (10%)Use—non-incorporative activities
- •Energy Releasers (explosives, motive propellant) in All Other Chemical Product and Preparation Manufacturing (5%)Use—non-incorporative activities
- •Fuels and fuel additives in Petroleum Refineries (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Fuels and fuel additives in Industrial Gas ManufacturingProcessing—repackaging
- •Intermediate in Petrochemical Manufacturing (50%)Processing as a reactant
- •Intermediate in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing as a reactant
- •Fuels and fuel additives in All Other Basic Organic Chemical Manufacturing (100%)Processing—repackaging
- •Fuel agents in Petrochemical Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
- •Processing aids, specific to petroleum production in Petroleum Refineries (30%)Processing—incorporation into formulation, mixture, or reaction product
- •Propellants, non-motive (blowing agents) in Machinery Manufacturing (40%)Use—non-incorporative activities
- •Propellants, non-motive (blowing agents) in Computer and Electronic Product Manufacturing (40%)Use—non-incorporative activities
- •Propellants, non-motive (blowing agents) in Electrical Equipment, Appliance, and Component Manufacturing (20%)Use—non-incorporative activities
- •Refrigerants in Electrical Equipment, Appliance, and Component ManufacturingProcessing—incorporation into article
- •Fuels and fuel additives in All other Petroleum and Coal Products Manufacturing (100%)Processing as a reactant
- •Intermediate in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
- •Fuel agents in Oil and Gas Drilling, Extraction, and Support activities (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Fuels and fuel additives in Wholesale and Retail Trade (29%)Processing—repackaging
- •Filler in Not Known or Reasonably Ascertainable (3%)Not Known or Reasonably Ascertainable
- •Propellants, non-motive (blowing agents) in Not Known or Reasonably Ascertainable (2%)Not Known or Reasonably Ascertainable
- •Density modifier in Not Known or Reasonably Ascertainable (4%)Not Known or Reasonably Ascertainable
- •Filler in Adhesive Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
- •Propellants, non-motive (blowing agents) in Adhesive Manufacturing (30%)Processing—incorporation into formulation, mixture, or reaction product
- •Density modifier in Adhesive Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
- •Filler in Mining (except Oil and Gas) and support activities (10%)Processing—incorporation into formulation, mixture, or reaction product
- •Filler in Electrical Equipment, Appliance, and Component Manufacturing (3%)Processing—incorporation into formulation, mixture, or reaction product
- •Filler in Construction (1%)Processing—incorporation into formulation, mixture, or reaction product
- •Propellants, non-motive (blowing agents) in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Sealant (barrier) in ConstructionNot Known or Reasonably Ascertainable
- •Adhesives and sealant chemicals in ConstructionUse—non-incorporative activities
Vendor Pricing
$0.65/gSigma-Aldrich (Rush Stock)
CountryGermany
Pack$228.20 / 350 g
Purity99%
Vendors2 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
1 more vendor
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Sigma-Aldrich | Germany | $0.65 | 350 g | 99% |
Chemical Identity
CAS75-28-5
PubChem CID6360
DTXSIDDTXSID1026401
FormulaC4H10
Mol. Weight58.12 g/mol
SMILESCC(C)C
Data Sources
DTXSID10264012026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
63602026-04-06
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/6360/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/6360.json
75-28-52026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv
CAS 75-28-52026-04-25
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr_industrial.csv