3-butyn-2-ol

3-丁炔-2-醇

Also known as: 1-Butyn-3-ol, 1-Butyne-3-ol, 1-Ethynylethanol, 1-Methyl-2-propynyl alcohol, 1-Methylpropargyl alcohol, 3-Hydroxy-1-butyne, But-3-yn-2-ol, Methylethynylcarbinol, DL-3-Butyn-2-ol, DL-3-Butyne-2-ol

3-butyn-2-ol (CAS 65337-13-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H6O and a molecular weight of 70.08980 g/mol. It is also known as 1-Butyn-3-ol, 1-Butyne-3-ol and 1-Ethynylethanol. Key properties include a boiling point of 66-67ºC150 mm Hg(lit.), a density of 0.950 g/mL at 20ºC and a flash point of 78 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
65337-13-5
Jingsj CID
J-10859-3
Molecular Formula
C4H6O
Chinese Name
3-丁炔-2-醇
Molecular Weight
70.08980 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point66-67ºC150 mm Hg(lit.)
Density0.950 g/mL at 20ºC
Flash Point78 °F

Frequently Asked Questions

What is the CAS number of 3-butyn-2-ol?

The CAS number of 3-butyn-2-ol is 65337-13-5.

What are the molecular formula and molecular weight of 3-butyn-2-ol?

3-butyn-2-ol has molecular formula C4H6O and molecular weight 70.08980 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-butyn-2-ol (CAS 65337-13-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10859-3 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.