2-Butyne-1,4-diol
Also known as: 1,4-Butynediol, But-2-yne-1,4-diol, 1,4-Dihydroxy-2-butyne, Dihydroxydimethylacetylene, BOZ, 2-Butyne-1,4-diol
2-Butyne-1,4-diol (CAS 110-65-6) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H6O2 and a molecular weight of 86.089 g/mol. Key properties include a melting point of 54 °C, a boiling point of 238.0±8.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 152.2±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 110-65-6
- Jingsj CID
- J-45661-2
- Molecular Formula
- C4H6O2
- Molecular Weight
- 86.089 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 54 °C |
|---|---|
| Boiling Point | 238.0±8.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 152.2±0.0 °C |
| Exact Mass | 86.036781 |
| PSA | 40.46000 |
| LogP | -1.10 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.506 |
| Additional Property | 3740 g/L (20 ºC) |
Customs & Trade Information
| HS Code | 2905399090 |
|---|---|
| Summary | 2905399090 other diols。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:5.5%。general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-Butyne-1,4-diol?
The CAS number of 2-Butyne-1,4-diol is 110-65-6.
What are the molecular formula and molecular weight of 2-Butyne-1,4-diol?
2-Butyne-1,4-diol has molecular formula C4H6O2 and molecular weight 86.089 g/mol.
What are the upstream and downstream products of 2-Butyne-1,4-diol?
For 2-Butyne-1,4-diol, Downstream Products: 3-Furoic acid, 1-n-Octylpyrrole, 2-Hydroxytetrahydrofuran.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Butyne-1,4-diol (CAS 110-65-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45661-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.