1,4-Butanediol
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$82M
Top SourceGermany 18%
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 290539 · basket
These shares come from HS customs code 290539, which covers 28 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).
DE 18%GermanyKR 16%South KoreaBR 11%BrazilTW 8%TaiwanMX 7%Mexico
- Canada
- Liechtenstein
- Israel
- Ireland
- Portugal
- Ukraine
- Singapore
EPA-registered manufacturers (6)
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
Ashland
Basf
Lyondell Chemical
Solvchem
Show all 6
The Lycra
Domestic parents -- activity not disclosed (6)
EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.
Emerald Performance Materials
Icc Industries
Koch Industries
Polynt Composites Usa
Shrieve Chemical
Show all 6
Triiso
EPA-registered importers (8)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Mitsui Chemicals · JP Japan
Allchem Industries Holding
Coim Usa In.
Dow Chemical
Evonik
Show all 8
Greenchem Industries
Mitsui Chemicals Americas
Shell
Why It Matters
Sectors
EnergyConstructionPlastics & RubberPaper & PrintingCore 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 10 sectors as 10 functional roles.
- •Intermediate in All Other Chemical Product and Preparation Manufacturing (88%)Processing as a reactant
- •Intermediate in Plastics Material and Resin Manufacturing (4%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesives and sealant chemicals in Adhesive Manufacturing (8%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
- •Hardener in Plastics Product Manufacturing (34%)Processing as a reactant
- •Intermediate in Plastics Product Manufacturing (1%)Processing as a reactant
- •Process regulators in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Propellants and blowing agents in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Process regulators in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Propellants and blowing agents in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Petrochemical Manufacturing (30%)Processing as a reactant
- •Agricultural chemicals (non-pesticidal) in Plastics Material and Resin Manufacturing (10%)Processing as a reactant
- •Solvents (which become part of product formulation or mixture) in Printing Ink Manufacturing (10%)Processing as a reactant
- •Intermediate in Asphalt Paving, Roofing, and Coating Materials Manufacturing (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Oil and Gas Drilling, Extraction, and Support activities (13%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Adhesive Manufacturing (5%)Processing—incorporation into formulation, mixture, or reaction product
- •Monomers in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Processing aids, specific to petroleum production in Petrochemical Manufacturing (100%)Processing as a reactant
- •Solvent in Not Known or Reasonably Ascertainable (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Hardener in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
Chemical Identity
CAS110-63-4
PubChem CID8064
DTXSIDDTXSID2024666
FormulaC4H10O2
Mol. Weight90.12 g/mol
SMILESC(CCO)CO
Data Sources
DTXSID20246662026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
80642026-04-06
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/8064/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/8064.json
110-63-42026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv
CAS 110-63-42026-04-25
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr_industrial.csv