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

1-(5-乙基-2-噻吩)-乙酮

Also known as: 1-(5-ethylthien-2-yl)ethanone, 1-(5-ethyl-2-thienyl)Ethanone, 1-(5-ethylthiophen-2-yl)ethan-1-one, 2-Ethyl-5-acetylthiophene, 2-acetyl-5-ethylthiophene, 5-ethyl-2-acetylthiophene, AKOS B020337, ART-CHEM-BB B020337, Ethanone, 1-(5-ethyl-2-thienyl)-

1-(5-Ethylthiophen-2-yl)ethanone (CAS 18761-46-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H10OS and a molecular weight of 154.22900 g/mol. It is also known as 1-(5-ethylthien-2-yl)ethanone, 1-(5-ethyl-2-thienyl)Ethanone and 1-(5-ethylthiophen-2-yl)ethan-1-one. Key properties include a boiling point of 256.4ºC at 760mmHg, a density of 1.076g/cm3 and a flash point of 108.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18761-46-1
Jingsj CID
J-1176691-1
Molecular Formula
C8H10OS
Chinese Name
1-(5-乙基-2-噻吩)-乙酮
Molecular Weight
154.22900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point256.4ºC at 760mmHg
Density1.076g/cm3
Flash Point108.9ºC

Frequently Asked Questions

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

The CAS number of 1-(5-Ethylthiophen-2-yl)ethanone is 18761-46-1.

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

1-(5-Ethylthiophen-2-yl)ethanone has molecular formula C8H10OS and molecular weight 154.22900 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-Ethylthiophen-2-yl)ethanone (CAS 18761-46-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1176691-1 (accessed 2026-10-22).

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