3-nitro-4-phenoxy-5-sulfamoylbenzoic acid

3-硝基-4-苯氧基-5-氨磺酰苯甲酸

Also known as: 3-nitro-4-phenoxy-5-sulphamoylbenzoic acid, bumetanide EP impurity A, bumetanide related compound B, bumetanide impurity 2, Benzoic acid, 3-(aminosulfonyl)-5-nitro-4-phenoxy-, 3-(aminosulfonyl)-5-nitro-4-phenoxybenzoic acid

3-nitro-4-phenoxy-5-sulfamoylbenzoic acid (CAS 28328-53-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H10N2O7S and a molecular weight of 338.293 g/mol. It is also known as 3-nitro-4-phenoxy-5-sulphamoylbenzoic acid, bumetanide EP impurity A and bumetanide related compound B. Key properties include a melting point of 251-253°C (dec.), a boiling point of 547.6±60.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 285.0±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
28328-53-2
Jingsj CID
J-1320728-3
Molecular Formula
C13H10N2O7S
Chinese Name
3-硝基-4-苯氧基-5-氨磺酰苯甲酸
Molecular Weight
338.293 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point251-253°C (dec.)
Boiling Point547.6±60.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point285.0±32.9 °C

Frequently Asked Questions

What is the CAS number of 3-nitro-4-phenoxy-5-sulfamoylbenzoic acid?

The CAS number of 3-nitro-4-phenoxy-5-sulfamoylbenzoic acid is 28328-53-2.

What are the molecular formula and molecular weight of 3-nitro-4-phenoxy-5-sulfamoylbenzoic acid?

3-nitro-4-phenoxy-5-sulfamoylbenzoic acid has molecular formula C13H10N2O7S and molecular weight 338.293 g/mol.

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

Last updated:

How to cite: Jingsj. "3-nitro-4-phenoxy-5-sulfamoylbenzoic acid (CAS 28328-53-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1320728-3 (accessed 2026-10-22).

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