Description

4-(Aminosulfonyl)-2-Chlorobenzoic Acid is a high-purity organic intermediate featuring both a sulfonamide and a carboxylic acid functional group on a chlorinated benzene ring. This unique bifunctional structure makes it a valuable building block for synthesizing complex molecules in advanced pharmaceutical and agrochemical research. It is primarily sought after by R&D chemists and process development scientists in the fine chemical and active pharmaceutical ingredient (API) manufacturing sectors.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel sulfonamide-based drug candidates, including diuretics, carbonic anhydrase inhibitors, and anti-cancer agents.
• Agrochemical Synthesis: Used in the development of new herbicides and fungicides, leveraging the bioactive sulfonamide moiety.
• Dye and Pigment Manufacturing: Serves as a starting material for producing specialized azo dyes and organic pigments due to its reactive sites.
• Chemical Research & Development: A versatile scaffold for medicinal chemistry and material science, enabling the creation of compound libraries for screening.
• Ligand and Chelating Agent Precursor: The carboxylic acid and sulfonamide groups allow for the creation of complexing agents for metal ions.

Basic Information

Product Name	4-(Aminosulfonyl)-2-Chlorobenzoic Acid
CAS No.	53250-84-3
Molecular Formula	C7H6ClNO4S
Molecular Weight	235.64 g/mol
Synonyms	2-Chloro-4-sulfamoylbenzoic Acid; 4-Sulfamoyl-2-chlorobenzoic Acid; Benzoic acid, 2-chloro-4-sulfamoyl-; 2-Chloro-4-carboxybenzenesulfonamide; 4-Carboxy-3-chlorobenzenesulfonamide; 2-Chloro-4-sulfamylbenzoic Acid
EINECS	Contact for details

Quality Control

Our 4-(Aminosulfonyl)-2-Chlorobenzoic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and tests for residual solvents and heavy metals. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). The compound may be hygroscopic (moisture-sensitive); keep the container tightly sealed to avoid moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.