1,4-Dioxane

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

Molecular structure of 123-91-1
US ProductionCBI
Import Value$3.5B
Top SourceIreland 57%

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 293299 · basket

These shares come from HS customs code 293299, which covers 27 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
IE 57%IrelandNL 24%NetherlandsCH 8%SwitzerlandCN 5%ChinaIT 2%Italy
EPA-registered importers (5)
Basf Se · DE Germany
Basf
Cellmark Usa, Llc.
Special Materials
Univar Solutions

Why It Matters

Sectors
AgricultureFoodMetals & MiningCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 4 sectors as 5 functional roles.

  • Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
  • Cleaning agent in Fabricated Metal Product Manufacturing (0%)Use—non-incorporative activities
  • Lubricating agent in Food, beverage, and tobacco product manufacturing (0%)Use—non-incorporative activities
  • Laboratory chemicals in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
  • Stabilizing agent in Miscellaneous Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.04/gA2B Chem LLC
CountryUnited States
Pack$22.00 / 500 g
Purity99%
Vendors5 available

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

4 more vendors
VendorCountry$/gPackPurity
AA BLOCKSUnited States$0.05500 g99%
Fluorochem UKUnited Kingdom$0.051 kg99%
Fluorochem EUGermany$0.051 kg99%
Labotest KGGermany$217.805000 mg90%

Chemical Identity

CAS123-91-1
PubChem CID31275
DTXSIDDTXSID4020533
FormulaC4H8O2
Mol. Weight88.11 g/mol
SMILESC1COCCO1

Data Sources

DTXSID40205332026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

312752026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/31275/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/31275.json

123-91-12026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 123-91-12026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv