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2-(But-3-yn-1-yl)oxirane

Also known as: Oxirane, 2-(3-butyn-1-yl)-, 5,6-Epoxy-1-hexyne, GL-0469, 2-but-3-ynyloxirane

2-(But-3-yn-1-yl)oxirane (CAS 125455-85-8) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C6H8O and a molecular weight of 96.12710 g/mol. Key properties include a boiling point of 113.2ºC at 760mmHg, a density of 0.974g/cm3 and a flash point of 11.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
125455-85-8
Jingsj CID
J-1506990-0
Molecular Formula
C6H8O
Molecular Weight
96.12710 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point113.2ºC at 760mmHg
Density0.974g/cm3
Flash Point11.5ºC
Exact Mass96.05750
PSA12.53000
LogP0.79860
Vapor Pressure24.9mmHg at 25°C
Refractive Index1.464

Customs & Trade Information

HS Code2910900090
Summary2910900090. epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-(But-3-yn-1-yl)oxirane?

The CAS number of 2-(But-3-yn-1-yl)oxirane is 125455-85-8.

What are the molecular formula and molecular weight of 2-(But-3-yn-1-yl)oxirane?

2-(But-3-yn-1-yl)oxirane has molecular formula C6H8O and molecular weight 96.12710 g/mol.

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-(But-3-yn-1-yl)oxirane (CAS 125455-85-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506990-0 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.