Description

3-(Aminosulfonyl)Benzenesulfonyl Chloride is a high-purity, bifunctional chemical intermediate featuring both sulfonyl chloride and sulfonamide groups. This unique structure makes it a versatile building block for synthesizing complex molecules with specific functional properties. It is primarily sought after by research and development chemists and process engineers in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based drugs, including diuretics, carbonic anhydrase inhibitors, and antiviral agents.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides where the sulfonamide moiety is critical for bioactivity.
• Dyestuff and Pigment Manufacturing: Serves as a precursor for creating sulfonated dyes and pigments, enhancing water solubility and color fastness.
• Polymer Modification: Employed to introduce sulfonamide groups into polymer chains, altering properties like hydrophilicity, ion-exchange capacity, or biological compatibility.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing molecular libraries and exploring new chemical entities in medicinal chemistry.
• Cross-linking Agent: Can act as a bifunctional linker in the synthesis of dendrimers, metal-organic frameworks (MOFs), or other structured materials.

Basic Information

Product Name	3-(Aminosulfonyl)Benzenesulfonyl Chloride
CAS No.	62646-47-3
Molecular Formula	C6H6ClNO4S2
Molecular Weight	255.70 g/mol
Synonyms	3-Sulfamoylbenzenesulfonyl chloride; m-Sulfamoylbenzenesulfonyl chloride; Benzenesulfonyl chloride, 3-(aminosulfonyl)-; 3-Aminosulfonylbenzenesulfonyl chloride; 1,3-Benzenedisulfonyl chloride, 2-amino- (tautomer); Meta-sulfamoylbenzene sulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 3-(Aminosulfonyl)Benzenesulfonyl Chloride is manufactured and tested under a strict quality management system. We ensure the product meets high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee consistent quality and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) in its original packaging 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.