Description

4-[(Methylsulfonyl)Amino]Benzenesulfonyl Chloride (Saltdata: Free) is a high-purity sulfonyl chloride derivative, a critical building block in advanced organic synthesis. Its bifunctional structure, featuring both a sulfonyl chloride and a methylsulfonamido group, makes it an indispensable reagent for introducing specific sulfonamide functionalities into target molecules. This compound is primarily sought after by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and pesticides with sulfonamide moieties for enhanced efficacy.
• Dye and Pigment Manufacturing: Serves as a reactive intermediate for creating specialized sulfonamide-linked colorants and functional dyes.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for producing specialty polymers with specific thermal or chemical resistance properties.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D labs for exploring new synthetic pathways and creating compound libraries.
• Material Science: Used in the surface modification of materials to introduce specific functional groups that alter surface properties.

Basic Information

Item	Detail
Product Name	4-[(Methylsulfonyl)Amino]Benzenesulfonyl Chloride (Saltdata: Free)
CAS No.	93345-21-2
Molecular Formula	C7H8ClNO4S2
Molecular Weight	269.73 g/mol
Synonyms	4-(Methanesulfonamido)benzenesulfonyl chloride; N-(4-Sulfonylchloridophenyl)methanesulfonamide; 4-(Methylsulfonylamino)benzenesulfonyl chloride; p-[(Methylsulfonyl)amino]benzenesulfonyl chloride; Benzenesulfonyl chloride, 4-[(methylsulfonyl)amino]-; Methanesulfonamide, N-(4-(chlorosulfonyl)phenyl)-; 93345-21-2 (CAS)
EINECS	Contact for details

Quality Control

Every batch of 4-[(Methylsulfonyl)Amino]Benzenesulfonyl Chloride is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the material meets the high standards required for research and production. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is supplied with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details

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