1-(Thieno[2,3-b]pyridin-5-yl)ethanone

1-(噻吩并[2,3-b]吡啶-5-基)乙酮

Also known as: 1-(Thieno[2,3-b]pyridin-5-yl)ethan-1-one, Ethanone, 1-thieno[2,3-b]pyridin-5-yl-, 5-Acetylthieno[2,3-b]pyridine, 5-Acetyl-thieno[2,3-b]pyridine, 1-thieno[2,3-b]pyridin-5-ylethanone

1-(Thieno[2,3-b]pyridin-5-yl)ethanone (CAS 18354-57-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NOS and a molecular weight of 177.22300 g/mol. It is also known as 1-(Thieno[2,3-b]pyridin-5-yl)ethan-1-one, Ethanone, 1-thieno[2,3-b]pyridin-5-yl- and 5-Acetylthieno[2,3-b]pyridine. Key properties include a boiling point of 305.631ºC at 760 mmHg, a density of 1.286g/cm3 and a flash point of 138.641ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18354-57-9
Jingsj CID
J-1047691-8
Molecular Formula
C9H7NOS
Chinese Name
1-(噻吩并[2,3-b]吡啶-5-基)乙酮
Molecular Weight
177.22300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point305.631ºC at 760 mmHg
Density1.286g/cm3
Flash Point138.641ºC

Frequently Asked Questions

What is the CAS number of 1-(Thieno[2,3-b]pyridin-5-yl)ethanone?

The CAS number of 1-(Thieno[2,3-b]pyridin-5-yl)ethanone is 18354-57-9.

What are the molecular formula and molecular weight of 1-(Thieno[2,3-b]pyridin-5-yl)ethanone?

1-(Thieno[2,3-b]pyridin-5-yl)ethanone has molecular formula C9H7NOS and molecular weight 177.22300 g/mol.

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

Last updated:

How to cite: Jingsj. "1-(Thieno[2,3-b]pyridin-5-yl)ethanone (CAS 18354-57-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1047691-8 (accessed 2026-10-22).

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