2-Ethynylbenzofuran

2-乙炔基苯并呋喃

Also known as: 2-Ethynyl-1-benzofuran, 2-Ethynylbenzofuran, Benzofuran, 2-ethynyl-, 2-ethynyl-benzo[b]furan, benzofurylacetylene

2-Ethynylbenzofuran (CAS 39165-03-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H6O and a molecular weight of 142.15400 g/mol. It is also known as 2-Ethynyl-1-benzofuran, Benzofuran, 2-ethynyl- and 2-ethynyl-benzo[b]furan. Key properties include a boiling point of 221.091ºC at 760 mmHg, a density of 1.146g/cm3 and a flash point of 89.04ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
39165-03-2
Jingsj CID
J-1184980-1
Molecular Formula
C10H6O
Chinese Name
2-乙炔基苯并呋喃
Molecular Weight
142.15400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point221.091ºC at 760 mmHg
Density1.146g/cm3
Flash Point89.04ºC

Frequently Asked Questions

What is the CAS number of 2-Ethynylbenzofuran?

The CAS number of 2-Ethynylbenzofuran is 39165-03-2.

What are the molecular formula and molecular weight of 2-Ethynylbenzofuran?

2-Ethynylbenzofuran has molecular formula C10H6O and molecular weight 142.15400 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Ethynylbenzofuran (CAS 39165-03-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1184980-1 (accessed 2026-10-22).

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