4-Chlorothieno[2,3-b]pyridine-5-carbonitrile

4-氯噻吩并[2,3-b]吡啶-5-甲腈

Also known as: Thieno[2,3-b]pyridine-5-carbonitrile, 4-chloro-, 4-chlorothieno[2,3-b]pyridine-5-carbonitrile

4-Chlorothieno[2,3-b]pyridine-5-carbonitrile (CAS 63873-61-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H3ClN2S and a molecular weight of 194.641 g/mol. It is also known as Thieno[2,3-b]pyridine-5-carbonitrile, 4-chloro- and 4-chlorothieno[2,3-b]pyridine-5-carbonitrile. Key properties include a boiling point of 354.2±37.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 168.0±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
63873-61-0
Jingsj CID
J-1357921-8
Molecular Formula
C8H3ClN2S
Chinese Name
4-氯噻吩并[2,3-b]吡啶-5-甲腈
Molecular Weight
194.641 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point354.2±37.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point168.0±26.5 °C

Frequently Asked Questions

What is the CAS number of 4-Chlorothieno[2,3-b]pyridine-5-carbonitrile?

The CAS number of 4-Chlorothieno[2,3-b]pyridine-5-carbonitrile is 63873-61-0.

What are the molecular formula and molecular weight of 4-Chlorothieno[2,3-b]pyridine-5-carbonitrile?

4-Chlorothieno[2,3-b]pyridine-5-carbonitrile has molecular formula C8H3ClN2S and molecular weight 194.641 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Chlorothieno[2,3-b]pyridine-5-carbonitrile (CAS 63873-61-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1357921-8 (accessed 2026-10-26).

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