Description

Benzenesulfonic Acid, 5-Amino-2-Chloro-, Monosodium Salt is a high-purity, functionalized aromatic sulfonate salt with significant industrial utility. This compound serves as a versatile intermediate and building block in advanced chemical synthesis, valued for its reactive amino and chloro substituents on the sulfonated benzene ring. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty dye industries for the production of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and other crop protection agents.
• Dye and Pigment Production: Serves as a precursor for azo dyes and other complex colorants.
• Chemical Research & Development: Employed as a reagent in organic synthesis and process development within R&D laboratories.
• Polymer Modification: Can be used to introduce sulfonate functionality into polymers for enhanced solubility or ionic character.
• Corrosion Inhibitor Formulation: A component in specialty formulations designed to protect metal surfaces.

Basic Information

Product Name	Benzenesulfonic Acid, 5-Amino-2-Chloro-, Monosodium Salt
CAS No.	34005-11-3
Molecular Formula	C6H5ClNNaO3S
Molecular Weight	229.62 g/mol
Synonyms	5-Amino-2-chlorobenzenesulfonic acid sodium salt; Sodium 5-amino-2-chlorobenzenesulfonate; 2-Chloro-5-aminobenzenesulfonic acid sodium salt; Monosodium 5-amino-2-chlorobenzenesulfonate; 3-Chloro-4-sulfanilic acid sodium salt; Benzenesulfonic acid, 5-amino-2-chloro-, sodium salt (1:1); 4-Amino-3-chlorobenzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, 5-Amino-2-Chloro-, Monosodium Salt is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specifications such as assay, impurity profile, and physical characteristics is provided with each shipment to guarantee compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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