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2-Chloro-5-(fluorosulfonyl)benzoic acid

2-氯-5-(氟磺酰基)苯甲酸

Also known as: 2-CHLORO-5-(FLUOROSULFONIC)BENZOIC ACID, 2-Chloro-5-(fluorosulpho)benzoic acid, 2-chloro-5-fluorosulfonylbenzoic acid, Benzoic acid, 2-chloro-5-(fluorosulfonyl)-, TIMTEC-BB SBB000777

2-Chloro-5-(fluorosulfonyl)benzoic acid (CAS 21346-66-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4ClFO4S and a molecular weight of 238.62100 g/mol. It is also known as 2-CHLORO-5-(FLUOROSULFONIC)BENZOIC ACID, 2-Chloro-5-(fluorosulpho)benzoic acid and 2-chloro-5-fluorosulfonylbenzoic acid. Key properties include a melting point of 148-150ºC(lit.), a boiling point of 370ºC at 760 mmHg, a density of 1.649g/cm3 and a flash point of 177.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21346-66-7
Jingsj CID
J-30623-4
Molecular Formula
C7H4ClFO4S
Chinese Name
2-氯-5-(氟磺酰基)苯甲酸
Molecular Weight
238.62100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point148-150ºC(lit.)
Boiling Point370ºC at 760 mmHg
Density1.649g/cm3
Flash Point177.6ºC

Frequently Asked Questions

What is the CAS number of 2-Chloro-5-(fluorosulfonyl)benzoic acid?

The CAS number of 2-Chloro-5-(fluorosulfonyl)benzoic acid is 21346-66-7.

What are the molecular formula and molecular weight of 2-Chloro-5-(fluorosulfonyl)benzoic acid?

2-Chloro-5-(fluorosulfonyl)benzoic acid has molecular formula C7H4ClFO4S and molecular weight 238.62100 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Chloro-5-(fluorosulfonyl)benzoic acid (CAS 21346-66-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30623-4 (accessed 2026-10-22).

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