1-(5-ethynylthiophen-2-yl)ethanone

1-(5-乙炔噻吩-2-基)乙酮

Also known as: 1-(5-Ethynylthiophen-2-yl)ethan-1-one, Ethanone, 1-(5-ethynyl-2-thienyl)- (9CI), Ethanone,1-(5-ethynyl-2-thienyl), Ethanone,1-(5-ethynyl-2-thienyl)-

1-(5-ethynylthiophen-2-yl)ethanone (CAS 658701-97-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6OS and a molecular weight of 150.19800 g/mol. It is also known as 1-(5-Ethynylthiophen-2-yl)ethan-1-one, Ethanone, 1-(5-ethynyl-2-thienyl)- (9CI) and Ethanone,1-(5-ethynyl-2-thienyl). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 658701-97-4
Jingsj CID: J-1493264-9
Molecular Formula: C₈H₆OS
Chinese Name: 1-(5-乙炔噻吩-2-基)乙酮
Molecular Weight: 150.19800 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 1-(5-ethynylthiophen-2-yl)ethanone?

The CAS number of 1-(5-ethynylthiophen-2-yl)ethanone is 658701-97-4.

What are the molecular formula and molecular weight of 1-(5-ethynylthiophen-2-yl)ethanone?

1-(5-ethynylthiophen-2-yl)ethanone has molecular formula C8H6OS and molecular weight 150.19800 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1-(5-ethynylthiophen-2-yl)ethanone (CAS 658701-97-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1493264-9 (accessed 2026-10-24).

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