Description

2,5-Dichloro-Benzenesulfonamide is a versatile organosulfur compound featuring a sulfonamide functional group flanked by chlorine substituents. This structure makes it a valuable synthetic intermediate and building block for the development of more complex molecules. It is primarily sought after by research and development chemists and process engineers in the pharmaceutical and agrochemical sectors. Its utility stems from its role in creating sulfonamide-based active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing the sulfonamide pharmacophore for diuretic, antibacterial, or carbonic anhydrase inhibitory activity.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the dichloro-benzenesulfonamide moiety contributes to biological activity and selectivity.
• Dye and Pigment Manufacturing: Serves as a precursor in the synthesis of specialty dyes and organic pigments, leveraging the sulfonamide group for solubility and the chlorine atoms for color fastness.
• Polymer Science: Acts as a monomer or additive in the creation of high-performance polymers, such as polyamides or polysulfonamides, with enhanced thermal and chemical resistance.
• Chemical Research & Development: Employed in academic and industrial R&D labs for exploring new organic reactions, catalysis, and the development of novel chemical entities.
• Ligand and Catalyst Preparation: Utilized to synthesize specialized ligands for metal complexes used in homogeneous catalysis or as analytical reagents.

Basic Information

Product Name	2,5-Dichloro-Benzenesulfonamide
CAS No.	7720-45-8
Molecular Formula	C6H5Cl2NO2S
Molecular Weight	226.08 g/mol
Synonyms	2,5-Dichlorobenzenesulfonamide; Benzenesulfonamide, 2,5-dichloro-; 2,5-Dichlorophenylsulfonamide; 2,5-Dichlorobenzenesulphonamide; 2,5-Dichloro-phenylsulfonamide; 2,5-Dichlorobenzene-1-sulfonamide; NSC 403107; 1,4-Dichloro-6-sulfamoylbenzene
EINECS	Contact for details

Quality Control

Our 2,5-Dichloro-Benzenesulfonamide is manufactured 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 and impurity profiles. For customers with specific regulatory needs, we can discuss compliance with relevant standards upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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