4-Chlorobenzenesulfonyl Chloride

Product Overview

4-Chlorobenzenesulfonyl Chloride is an aromatic sulfonyl chloride widely used as a key intermediate in pharmaceutical, agrochemical, and fine chemical synthesis. Owing to its highly reactive sulfonyl chloride group, it is commonly employed in sulfonylation reactions for the preparation of sulfonamides, sulfonate esters, and functionalized aromatic compounds.

This compound is valued for its predictable reactivity and suitability for both industrial-scale production and laboratory research.

Key Product Identification

• Product Name: 4-Chlorobenzenesulfonyl Chloride

• Synonyms: p-Chlorobenzenesulfonyl Chloride

• Chemical Formula: C₆H₄Cl₂O₂S

• CAS Number: 98-60-2

• Molecular Weight: 227.06 g/mol

• HS Code: 29041000

• Appearance: White to pale yellow crystalline solid

• Odor: Pungent, characteristic sulfonyl chloride odor

Chemical & Physical Properties

Typical values for industrial and export-grade material.

Manufacturing & Quality Control

4-Chlorobenzenesulfonyl Chloride is manufactured via controlled sulfonation and chlorination of chlorobenzene derivatives. Production is carried out under strictly monitored conditions to ensure consistent quality and performance.

Quality control includes:

• Purity analysis (HPLC / GC)

• Moisture and impurity control

• Appearance and color inspection

• Batch traceability

Complete quality documentation is supplied with each shipment.

Applications of 4-Chlorobenzenesulfonyl Chloride

Pharmaceutical Intermediates

Used in the synthesis of sulfonamide-based drug intermediates and API building blocks.

Agrochemical Manufacturing

Applied in the production of pesticide and herbicide intermediates requiring aromatic sulfonyl groups.

Fine Chemicals & Specialty Synthesis

Used in specialty chemical production, custom synthesis, and contract manufacturing.

Research & Development

Common reagent in organic chemistry laboratories for sulfonylation reactions.

Packaging & Logistics

• Standard Packaging:

• 25 kg fiber drum

• 25 kg plastic drum

• Custom Packaging: Available upon request

• Storage Conditions:

• Store in a cool, dry, well-ventilated area

• Keep containers tightly sealed and protected from moisture

Safety & Handling

• Corrosive and moisture-reactive chemical

• Avoid contact with skin, eyes, and inhalation

• Use appropriate personal protective equipment (PPE)

• Handle under dry and well-ventilated conditions

• Refer to the Safety Data Sheet (SDS/MSDS) before use

Regulatory & Documentation

Available upon request:

• COA (Certificate of Analysis)

• SDS / MSDS

• TDS (Technical Data Sheet)

• Export and regulatory compliance documents

Why Choose Our 4-Chlorobenzenesulfonyl Chloride?

• ✔ Stable purity and batch consistency

• ✔ Suitable for pharmaceutical and agrochemical synthesis

• ✔ Export-ready packaging and documentation

• ✔ Flexible MOQ and logistics options

• ✔ Professional technical support

Frequently Asked Questions (FAQ)

Q1: Is 4-Chlorobenzenesulfonyl Chloride moisture sensitive?

Yes, it reacts with moisture and should be stored and handled under dry conditions.

Q2: What are the main applications of this product?

It is mainly used in pharmaceutical, agrochemical, and fine chemical synthesis.

Q3: Can you provide analytical and regulatory documents?

Yes, COA, SDS, and additional documents are available for each batch.

Q4: What is the typical minimum order quantity (MOQ)?

MOQ depends on packaging and destination; please contact us for specific details.