Description

2,4-Dichlorobenzenesulfonyl Chloride is a versatile and highly reactive organosulfur compound, serving as a critical building block in advanced organic synthesis. Its value lies in its dual functionality as a sulfonylating and chlorinating agent, enabling the construction of complex molecules with precision. This intermediate is essential for manufacturers in the agrochemical and pharmaceutical sectors, where it is used to create active ingredients, dyes, and functional materials requiring specific sulfonamide or sulfonate linkages.

Application

• Agrochemical Synthesis: Key intermediate in the production of herbicides, fungicides, and plant growth regulators.
• Pharmaceutical Intermediates: Used in the synthesis of sulfonamide-based drugs and other active pharmaceutical ingredients (APIs).
• Dye and Pigment Manufacturing: Serves as a precursor for sulfonated dyes and specialty colorants.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymers for enhanced properties.
• Chemical Research & Development: A valuable reagent for constructing complex molecular architectures in R&D laboratories.
• Ligand and Catalyst Preparation: Used in the synthesis of specialized ligands for metal catalysis.

Basic Information

Product Name	2,4-Dichlorobenzenesulfonyl Chloride
CAS No.	16271-33-3
Molecular Formula	C6H3Cl3O2S
Molecular Weight	245.51 g/mol
Synonyms	2,4-Dichlorobenzene-1-sulfonyl chloride; 1,3-Dichloro-4-sulfonylchlorobenzene; Benzenesulfonyl chloride, 2,4-dichloro-; 2,4-DCBSC; 2,4-Dichlorophenylsulfonyl chloride
EINECS	240-357-6

Quality Control

Our 2,4-Dichlorobenzenesulfonyl Chloride is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including assay (HPLC), identity confirmation (IR, NMR), and impurity profiling, to ensure it meets exacting standards for synthetic applications. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and reacts with water and strong bases; ensure containers are kept tightly sealed under an inert atmosphere such as nitrogen or argon for long-term storage. Keep away from heat, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or lumps
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	40 - 44 °C
Water Content (KF)	≤ 0.5%

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