2-sulfobenzoic acid monoammonium salt

2-磺基苯甲酸单铵盐

Also known as: Benzoic acid, 2-sulfo-, monoammonium salt, ammonium 2-sulfobenzoate, ammonium hydrogen 2-sulfobenzoate, o-sulfobenzoic acid monoammonium salt, ammonium o-sulfobenzoate, ammonium acid sulfobenzoate, O-SULFOBENZOIC ACID MONOAMMONIUM SALT, AMMONIUM O-SULFOBENZOATE

2-sulfobenzoic acid monoammonium salt (CAS 6939-89-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H9NO5S and a molecular weight of 219.21500 g/mol. It is also known as Benzoic acid, 2-sulfo-, monoammonium salt, ammonium 2-sulfobenzoate and ammonium hydrogen 2-sulfobenzoate. Key properties include a melting point of 150-154°C, a boiling point of 521ºC at 760 mmHg and a flash point of 268.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6939-89-5
Jingsj CID
J-48866-2
Molecular Formula
C7H9NO5S
Chinese Name
2-磺基苯甲酸单铵盐
Molecular Weight
219.21500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point150-154°C
Boiling Point521ºC at 760 mmHg
Flash Point268.9ºC

Frequently Asked Questions

What is the CAS number of 2-sulfobenzoic acid monoammonium salt?

The CAS number of 2-sulfobenzoic acid monoammonium salt is 6939-89-5.

What are the molecular formula and molecular weight of 2-sulfobenzoic acid monoammonium salt?

2-sulfobenzoic acid monoammonium salt has molecular formula C7H9NO5S and molecular weight 219.21500 g/mol.

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

Last updated:

How to cite: Jingsj. "2-sulfobenzoic acid monoammonium salt (CAS 6939-89-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48866-2 (accessed 2026-10-23).

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