2,4-dichloro-5-(chlorosulfonyl)benzoic acid

2,4-二氯-5-氯磺酰基苯甲酸

Also known as: 2,4-dichloro-5-(chlorosulphonyl)benzoic acid, 2,4-dichloro-5-chlorosulfonylbenzoic acid, 2,4-dichloro-5-chlorosulfonyl benzoic acid, 5-chlorosulfonyl-2,4-dichlorobenzoic acid, Benzoic acid, 2,4-dichloro-5-(chlorosulfonyl)-, 2,4-Dichlor-5-carboxybenzolsulfochlorid, 2,4-Dichlor-5-chlorsulfonyl-benzoesaeure, 3-carboxy-4,6-dichlorobenzenesulfonyl chloride

2,4-dichloro-5-(chlorosulfonyl)benzoic acid (CAS 3740-18-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H3Cl3O4S and a molecular weight of 289.52000 g/mol. It is also known as 2,4-dichloro-5-(chlorosulphonyl)benzoic acid, 2,4-dichloro-5-chlorosulfonylbenzoic acid and 2,4-dichloro-5-chlorosulfonyl benzoic acid. Key properties include a boiling point of 430.5ºC at 760 mmHg, a density of 1.781g/cm3 and a flash point of 214.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3740-18-9
Jingsj CID
J-1356008-3
Molecular Formula
C7H3Cl3O4S
Chinese Name
2,4-二氯-5-氯磺酰基苯甲酸
Molecular Weight
289.52000 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point430.5ºC at 760 mmHg
Density1.781g/cm3
Flash Point214.2ºC

Frequently Asked Questions

What is the CAS number of 2,4-dichloro-5-(chlorosulfonyl)benzoic acid?

The CAS number of 2,4-dichloro-5-(chlorosulfonyl)benzoic acid is 3740-18-9.

What are the molecular formula and molecular weight of 2,4-dichloro-5-(chlorosulfonyl)benzoic acid?

2,4-dichloro-5-(chlorosulfonyl)benzoic acid has molecular formula C7H3Cl3O4S and molecular weight 289.52000 g/mol.

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

Last updated:

How to cite: Jingsj. "2,4-dichloro-5-(chlorosulfonyl)benzoic acid (CAS 3740-18-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1356008-3 (accessed 2026-10-22).

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