Description

4-Sulphanilamidobenzoic Acid is a specialized organic compound that serves as a key intermediate in the synthesis of more complex molecules. Its value lies in its bifunctional structure, containing both a sulfonamide and a carboxylic acid group, which makes it a versatile building block for pharmaceutical and fine chemical research. This product is primarily needed by R&D laboratories and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing new active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of sulfonamide-based drugs and other active pharmaceutical ingredients (APIs).
• Research & Development: Used as a building block in medicinal chemistry for creating novel compound libraries and exploring new therapeutic pathways.
• Agrochemical Synthesis: Serves as an intermediate in the production of certain herbicides and fungicides.
• Dye and Pigment Manufacturing: Can be utilized in the synthesis of azo dyes and other colorants.
• Fine Chemical Production: Employed in custom synthesis and the manufacture of specialty chemicals requiring its specific molecular scaffold.

Basic Information

Product Name	4-Sulphanilamidobenzoic Acid
CAS No.	6336-70-5
Molecular Formula	C13H12N2O4S
Molecular Weight	292.31 g/mol
Synonyms	4-(4-Aminobenzenesulfonamido)benzoic Acid; 4-[(4-Aminophenyl)sulfonylamino]benzoic Acid; Benzoic acid, 4-[(4-aminophenyl)sulfonylamino]-; p-Sulfanilylaminobenzoic Acid; 4-(p-Aminobenzenesulfonamido)benzoic Acid; N4-Sulfanilyl-4-aminobenzoic Acid; 4-Sulfanilamidobenzoic Acid
EINECS	228-719-5

Quality Control

Our 4-Sulphanilamidobenzoic Acid is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material is suitable for demanding applications in research and regulated synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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