Description

o-Chlorobenzenesulfonamide is a versatile aromatic sulfonamide derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its functional group combination, making it a key intermediate for creating compounds with specific biological or material properties. This product is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it is used to develop new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of sulfonamide-based drugs, including diuretics and carbonic anhydrase inhibitors.
• Agrochemical Synthesis: Used in the development of novel herbicides and fungicides, leveraging its bioactive sulfonamide core.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing specialty dyes and colorants.
• Polymer Modification: Employed as a functional monomer or additive to impart specific properties to polymeric materials.
• Chemical Research: Serves as a standard or reagent in methodological development and organic chemistry research.
• Cross-Coupling Reactions: Utilized as a substrate in palladium-catalyzed reactions for creating complex biaryl structures.

Basic Information

Product Name	o-Chlorobenzenesulfonamide
CAS No.	6961-82-6
Molecular Formula	C6H6ClNO2S
Molecular Weight	191.64 g/mol
Synonyms	2-Chlorobenzenesulfonamide; Benzenesulfonamide, 2-chloro-; o-Chlorophenylsulfonamide; 2-Chlorophenylsulfonamide; 1-Chloro-2-sulfamoylbenzene; NSC 403697; 2-CBSA
EINECS	230-150-8

Quality Control

Our o-Chlorobenzenesulfonamide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for synthetic applications. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

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). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	142 - 147 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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