Description

3-Acetylbenzenesulfonyl Chloride is a versatile and reactive aromatic sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in the dual functionality of the acetyl and sulfonyl chloride groups, enabling precise chemical modifications for creating complex molecular architectures. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require high-purity reagents for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
• Dyestuff and Pigment Production: Serves as a building block for synthesizing sulfonated dyes and colorants.
• Polymer Modification: Employed to introduce sulfonyl groups into polymer chains, altering properties like solubility and thermal stability.
• Chemical Research & Development: A valuable reagent for medicinal chemistry and process chemistry in developing new chemical entities.
• Ligand and Catalyst Preparation: Useful for synthesizing specialized ligands for metal complexes and catalysts.

Basic Information

Product Name	3-Acetylbenzenesulfonyl Chloride
CAS No.	73035-16-2
Molecular Formula	C8H7ClO3S
Molecular Weight	218.66 g/mol
Synonyms	1-(3-Chlorosulfonylphenyl)ethanone; 3-Acetylbenzenesulfonic acid chloride; m-Acetylbenzenesulfonyl Chloride; 3-Acetylphenylsulfonyl chloride; 3'-Acetylbenzenesulfonyl chloride; 1-Acetyl-3-(chlorosulfonyl)benzene; Ethanone, 1-[3-(chlorosulfonyl)phenyl]-
EINECS	Contact for details

Quality Control

Our 3-Acetylbenzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere if necessary to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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