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4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride

4'-氯-[1,1'-联苯]-4-磺酰氯

Also known as: 4'-Chlorobiphenyl-4-sulfonyl chloride, 4-(4-chlorophenyl)benzenesulfonyl chloride, 4-Chloro-[1,1'-biphenyl]-4'-sulphonyl chloride, 4'-chloro-4-biphenylylsulphonyl chloride

4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride (CAS 20443-74-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H8Cl2O2S and a molecular weight of 287.16200 g/mol. It is also known as 4'-Chlorobiphenyl-4-sulfonyl chloride, 4-(4-chlorophenyl)benzenesulfonyl chloride and 4-Chloro-[1,1'-biphenyl]-4'-sulphonyl chloride. Key properties include a melting point of 109ºC, a boiling point of 400.8ºC at 760 mmHg, a density of 1.412 g/cm3 and a flash point of 196.2ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20443-74-7
Jingsj CID
J-1168651-8
Molecular Formula
C12H8Cl2O2S
Chinese Name
4'-氯-[1,1'-联苯]-4-磺酰氯
Molecular Weight
287.16200 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point109ºC
Boiling Point400.8ºC at 760 mmHg
Density1.412 g/cm3
Flash Point196.2ºC

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride?

The CAS number of 4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride is 20443-74-7.

What are the molecular formula and molecular weight of 4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride?

4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride has molecular formula C12H8Cl2O2S and molecular weight 287.16200 g/mol.

Is 4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride hazardous?

4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride 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. "4'-chloro[1,1'-biphenyl]-4-sulfonyl chloride (CAS 20443-74-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1168651-8 (accessed 2026-10-25).

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