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1-[5-(2-phenyleth-1-ynyl)-2-thienyl]ethan-1-one

1-(5-(苯乙炔基)噻吩-2-基)乙-1-酮

Also known as: 2-ACETYL-5-(PHENYLETHYNYL)THIOPHENE, 1-(5-(Phenylethynyl)thiophen-2-yl)ethan-1-one, 1-(5-(Phenylethynyl)thiophen-2-yl)ethanone, 1-[5-(2-phenylethynyl)thiophen-2-yl]ethan-1-one, Ethanone, 1-[5-(2-phenylethynyl)-2-thienyl]-

1-[5-(2-phenyleth-1-ynyl)-2-thienyl]ethan-1-one (CAS 175203-54-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H10OS and a molecular weight of 226.29400 g/mol. It is also known as 2-ACETYL-5-(PHENYLETHYNYL)THIOPHENE, 1-(5-(Phenylethynyl)thiophen-2-yl)ethan-1-one and 1-(5-(Phenylethynyl)thiophen-2-yl)ethanone. Key properties include a boiling point of 403.2ºC at 760mmHg, a density of 1.21g/cm3 and a flash point of 197.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
175203-54-0
Jingsj CID
J-1496684-8
Molecular Formula
C14H10OS
Chinese Name
1-(5-(苯乙炔基)噻吩-2-基)乙-1-酮
Molecular Weight
226.29400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point403.2ºC at 760mmHg
Density1.21g/cm3
Flash Point197.6ºC

Frequently Asked Questions

What is the CAS number of 1-[5-(2-phenyleth-1-ynyl)-2-thienyl]ethan-1-one?

The CAS number of 1-[5-(2-phenyleth-1-ynyl)-2-thienyl]ethan-1-one is 175203-54-0.

What are the molecular formula and molecular weight of 1-[5-(2-phenyleth-1-ynyl)-2-thienyl]ethan-1-one?

1-[5-(2-phenyleth-1-ynyl)-2-thienyl]ethan-1-one has molecular formula C14H10OS and molecular weight 226.29400 g/mol.

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

Last updated:

How to cite: Jingsj. "1-[5-(2-phenyleth-1-ynyl)-2-thienyl]ethan-1-one (CAS 175203-54-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1496684-8 (accessed 2026-10-25).

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