2-Butyne-1,4-diol
CAS 110-65-6
U.S. production volumes are classified as confidential business information.
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction 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 290539 · basket
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
These shares come from HS customs code 290539, which covers 48 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.
- Canada
- Liechtenstein
- Israel
- Ireland
- Portugal
- Ukraine
- Singapore
Why It Matters
Industrial Uses
Used in 3 sectors as 5 functional roles.
- •Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
- •Chelating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Etching agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Plating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Plastics Material and Resin ManufacturingProcessing as a reactant
- •Corrosion inhibitor in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
13 more vendors
| 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 |
|---|---|---|---|---|
| AA BLOCKS | United States | $0.06 | 500 g | 98% |
| Manchester Organics | United Kingdom | $0.06 | 1 kg | — |
| Sigma-Aldrich (Rush Stock) | Germany | $0.07 | 1 kg | 99% |
| Sigma-Aldrich | Germany | $0.07 | 1 kg | 99% |
| ALFA AESAR | Germany | $0.07 | 5 kg | 98% |
| AK Scientific Specialized | United States | $0.13 | 500 g | 98% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 98% |
| AK Scientific, Inc. | United States | $0.42 | 500 g | 99% |
| Fluorochem UK | United Kingdom | $1.63 | 100 g | 99% |
| Otava, Ltd. | Ukraine | $2280.00 | 50 mg | 95% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 95% |
| Princeton BioMolecular Research (SC) | United States | $2900.00 | 100 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $3170.00 | 100 mg | 90% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID4021921Retrieved 2026-04-06
- PubChem · compound 8066Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
2-Butyne-1,4-diol (CAS 110-65-6) https://chemicalindependence.com/chemical/110-65-6/ EPA CompTox (DSSTox): DTXSID4021921. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4021921 PubChem: 8066. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8066 EPA Chemical Data Reporting: 110-65-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 110-65-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290539 for CAS 110-65-6. Reporting year: 2024. https://usatrade.census.gov/