Description

2-Ethylbenzenesulphonyl Chloride is a versatile and reactive organosulfur compound primarily used as a key sulfonylation reagent and synthetic intermediate. Its value lies in its ability to introduce the sulfonyl functional group into target molecules, enabling the synthesis of sulfonamides, sulfonate esters, and other derivatives critical for advanced chemical manufacturing. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing sulfonamide-based drugs, including diuretics, antibacterial agents, and protease inhibitors.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators that incorporate sulfonyl groups for enhanced activity.
• Dyestuff and Pigment Manufacturing: Serves as an intermediate in creating sulfonated dyes and organic pigments, improving solubility and color fastness.
• Polymer Modification: Employed to introduce sulfonyl chloride groups into polymer chains for subsequent functionalization, altering properties like hydrophilicity or reactivity.
• Chemical Research & Development: A valuable reagent in organic synthesis laboratories for constructing complex molecules and exploring new reaction pathways.
• Surfactant and Detergent Industry: Acts as a precursor for anionic surfactants through reactions to form sulfonates.

Basic Information

Product Name	2-Ethylbenzenesulphonyl Chloride
CAS No.	34586-43-1
Molecular Formula	C8H9ClO2S
Molecular Weight	204.67 g/mol
Synonyms	2-Ethylbenzenesulfonyl chloride; o-Ethylbenzenesulfonyl chloride; 1-Ethyl-2-sulfonylchloridobenzene; Benzenesulfonyl chloride, 2-ethyl-; 2-Ethylphenylsulfonyl chloride; (2-Ethylphenyl)sulfonyl chloride; 2-Ethylbenzene-1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 2-Ethylbenzenesulphonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are available for 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, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and reacts with water; ensure containers are kept tightly sealed to exclude moisture. Keep away from strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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