Description

(4-(Methylsulfonyl)Phenyl)Methanesulfonyl Chloride is a specialized sulfonyl chloride derivative, a key reactive intermediate in advanced organic synthesis. Its value lies in its dual sulfonyl chloride functionality, enabling the efficient introduction of sulfonyl groups to construct complex molecular architectures. This high-purity building block is essential for researchers and process chemists in the pharmaceutical, agrochemical, and material science industries developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Critical building block for the synthesis of sulfonamide-based drug candidates, including kinase inhibitors and enzyme modulators.
• Agrochemical Synthesis: Used in creating novel sulfonylurea or sulfonamide herbicides and pesticides with specific activity profiles.
• Polymer Chemistry: Serves as a cross-linking agent or monomer precursor for engineering high-performance polymers and resins with specific thermal or chemical resistance.
• Chemical Research & Development: A versatile reagent for constructing complex organic molecules in medicinal chemistry and process development labs.
• Ligand and Catalyst Preparation: Employed in the synthesis of specialized ligands and organocatalysts used in asymmetric synthesis.
• Material Science: Used in surface modification and the creation of advanced organic electronic materials.

Basic Information

Product Name	(4-(Methylsulfonyl)Phenyl)Methanesulfonyl Chloride
CAS No.	163295-77-0
Molecular Formula	C9H9ClO4S2
Molecular Weight	280.75 g/mol
Synonyms	4-(Methylsulfonyl)benzenemethanesulfonyl chloride; 1-(Chlorosulfonylmethyl)-4-(methylsulfonyl)benzene; p-(Methylsulfonyl)benzylsulfonyl chloride; (4-Methanesulfonylphenyl)methanesulfonyl chloride; 4-(Methanesulfonyl)benzylsulfonyl chloride; Bis(4-methylsulfonylphenyl)methane sulfonyl chloride precursor; [4-(Methylsulfonyl)phenyl]methanesulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of (4-(Methylsulfonyl)Phenyl)Methanesulfonyl Chloride is manufactured and tested under strict quality management systems. Our products undergo rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and consistency suitable for demanding synthetic applications. Certificates of Analysis (COA) with detailed specifications are provided to guarantee traceability and compliance with your research or production standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from heat, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Melting Point	Contact for details
Heavy Metals	< 10 ppm

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