Description

4-Chlorosulfonyl-Pyridinium, Chloride is a specialized pyridinium-based sulfonyl chloride derivative, serving as a high-value synthetic intermediate. Its core value proposition lies in its dual reactive sites, enabling its use as a versatile building block for constructing complex molecules in advanced chemical synthesis. This compound is primarily needed by research and development teams, as well as process chemists, in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those requiring sulfonamide or sulfonate ester functionalities.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides that incorporate pyridine and sulfonyl groups.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands and organocatalysts used in asymmetric synthesis and metal complexation.
• Material Science Research: Employed in the development of advanced polymers, ionic liquids, and functional surfaces with specific chemical properties.
• Chemical Biology Probes: Useful for synthesizing activity-based probes and labeling reagents for studying biological systems and enzyme activity.
• Custom Synthesis and Contract Manufacturing: A critical reagent for custom synthesis houses serving the life sciences and fine chemical sectors.

Basic Information

Item	Details
Product Name	4-Chlorosulfonyl-Pyridinium, Chloride
CAS No.	489430-50-4
Molecular Formula	C5H5Cl2NO2S
Molecular Weight	222.07 g/mol
Synonyms	4-(Chlorosulfonyl)pyridinium chloride; Pyridinium, 4-(chlorosulfonyl)-, chloride; 4-Pyridinesulfonyl chloride, hydrochloride; N/A
EINECS	Contact for details

Quality Control

Our 4-Chlorosulfonyl-Pyridinium, Chloride is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and process chemistry. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is moisture-sensitive (hygroscopic) and should be handled under anhydrous conditions to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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