4-Methylsulfonyl-2,2',3',4',5-pentachlorobiphenyl

4-甲基磺酰基-2,2',3',4',5-五氯联苯

Also known as: 1,1'-Biphenyl, 2,2',3,4,5'-pentachloro-4'-(methylsulfonyl)-, 2,2',3,4,5'-Pentachloro-4'-(methylsulfonyl)-1,1'-biphenyl, 4'-Methylsulfonyl-2,3,4,2',5'-pentachlorobiphenyl, 1,2,3-Trichloro-4-(2,5-dichloro-4-methylsulfonylphenyl)benzene

4-Methylsulfonyl-2,2',3',4',5-pentachlorobiphenyl (CAS 66640-59-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H7Cl5O2S and a molecular weight of 404.52300 g/mol. It is also known as 1,1'-Biphenyl, 2,2',3,4,5'-pentachloro-4'-(methylsulfonyl)-, 2,2',3,4,5'-Pentachloro-4'-(methylsulfonyl)-1,1'-biphenyl and 4'-Methylsulfonyl-2,3,4,2',5'-pentachlorobiphenyl. Key properties include a boiling point of 511.2ºC at 760 mmHg, a density of 1.578g/cm3 and a flash point of 263ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
66640-59-3
Jingsj CID
J-1361337-4
Molecular Formula
C13H7Cl5O2S
Chinese Name
4-甲基磺酰基-2,2',3',4',5-五氯联苯
Molecular Weight
404.52300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point511.2ºC at 760 mmHg
Density1.578g/cm3
Flash Point263ºC

Frequently Asked Questions

What is the CAS number of 4-Methylsulfonyl-2,2',3',4',5-pentachlorobiphenyl?

The CAS number of 4-Methylsulfonyl-2,2',3',4',5-pentachlorobiphenyl is 66640-59-3.

What are the molecular formula and molecular weight of 4-Methylsulfonyl-2,2',3',4',5-pentachlorobiphenyl?

4-Methylsulfonyl-2,2',3',4',5-pentachlorobiphenyl has molecular formula C13H7Cl5O2S and molecular weight 404.52300 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Methylsulfonyl-2,2',3',4',5-pentachlorobiphenyl (CAS 66640-59-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361337-4 (accessed 2026-10-26).

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