5-Chloro-2-thiophenecarbonitrile

5-氯-2-噻吩甲腈

Also known as: 2-Chloro-5-cyanothiophene, 2-Cyano-5-chlorothiophene, 5-Chlorothiophene-2-carbonitrile, 2-Thiophenecarbonitrile, 5-chloro-, 5-Chlor-2-cyan-thiophen, 5-Chlor-thiophen-2-carbonitril, 5-chloro-thiophene-2-carbonitrile

5-Chloro-2-thiophenecarbonitrile (CAS 50478-16-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2ClNS and a molecular weight of 143.594 g/mol. It is also known as 2-Chloro-5-cyanothiophene, 2-Cyano-5-chlorothiophene and 5-Chlorothiophene-2-carbonitrile. Key properties include a boiling point of 201.2±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 75.5±21.8 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
50478-16-5
Jingsj CID
J-856727-5
Molecular Formula
C5H2ClNS
Chinese Name
5-氯-2-噻吩甲腈
Molecular Weight
143.594 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point201.2±20.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point75.5±21.8 °C

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of 5-Chloro-2-thiophenecarbonitrile?

The CAS number of 5-Chloro-2-thiophenecarbonitrile is 50478-16-5.

What are the molecular formula and molecular weight of 5-Chloro-2-thiophenecarbonitrile?

5-Chloro-2-thiophenecarbonitrile has molecular formula C5H2ClNS and molecular weight 143.594 g/mol.

Is 5-Chloro-2-thiophenecarbonitrile hazardous?

5-Chloro-2-thiophenecarbonitrile has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "5-Chloro-2-thiophenecarbonitrile (CAS 50478-16-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-856727-5 (accessed 2026-10-22).

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