Description

2,4-Dichlorobenzenesulfonamide is a versatile and high-purity sulfonamide derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual functionality, acting as a key intermediate for the development of pharmaceuticals, agrochemicals, and specialty chemicals. This compound is essential for R&D chemists and production managers in the pharmaceutical, crop protection, and fine chemical industries seeking reliable, high-quality intermediates for complex synthesis pathways.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs and diuretics.
• Agrochemical Synthesis: Used in the manufacturing of herbicides, fungicides, and other crop protection agents, leveraging its chlorinated aromatic structure.
• Dye and Pigment Manufacturing: Serves as an intermediate for producing sulfonated azo dyes and other complex colorants.
• Polymer Modification: Acts as a functional monomer or additive to impart specific properties like flame retardancy or UV stability to polymers.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new synthetic routes and creating novel sulfonamide compounds.
• Ligand and Catalyst Preparation: Utilized in the preparation of specialized ligands for metal catalysis and coordination chemistry.

Basic Information

Product Name	2,4-Dichlorobenzenesulfonamide
CAS No.	20532-15-4
Molecular Formula	C6H5Cl2NO2S
Molecular Weight	226.08 g/mol
Synonyms	2,4-Dichlorobenzenesulfonamide; Benzenesulfonamide, 2,4-dichloro-; 2,4-Dichlorobenzene-1-sulfonamide; 2,4-Dichlorophenylsulfonamide; NSC 403697; 2,4-Dichlorobenzenesulphonamide; 2,4-DCBA
EINECS	243-861-5

Quality Control

Our 2,4-Dichlorobenzenesulfonamide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment.

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 strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
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.