Description

5-Ethyl-2-Methoxy-Benzenesulfonyl Chloride is a versatile and reactive sulfonyl chloride derivative, primarily used as a key synthetic intermediate in advanced organic synthesis. Its core value lies in its ability to act as a sulfonylation reagent, facilitating the introduction of the sulfonyl functional group into target molecules, which is critical for modulating physicochemical properties and biological activity. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries, where it is employed in the development of new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates, particularly for creating sulfonamide-based therapeutics with potential applications in various disease areas.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the sulfonyl moiety can contribute to efficacy and selectivity.
• Chemical Research & Development: Serves as a fundamental reagent in academic and industrial R&D labs for exploring new organic reactions and constructing complex molecular architectures.
• Material Science Precursor: Potential use in the synthesis of specialty polymers, dyes, or functional materials that require sulfonated components for specific properties like solubility or ionic conductivity.
• Process Chemistry: Employed in scale-up and optimization studies for the manufacturing of fine chemicals and active pharmaceutical ingredients (APIs).

Basic Information

Product Name	5-Ethyl-2-Methoxy-Benzenesulfonyl Chloride
CAS No.	88040-88-4
Molecular Formula	C9H11ClO3S
Molecular Weight	234.70 g/mol
Synonyms	2-Methoxy-5-ethylbenzenesulfonyl chloride; 5-Ethyl-2-methoxybenzene-1-sulfonyl chloride; 1-(Chlorosulfonyl)-2-methoxy-5-ethylbenzene; 2-Methoxy-5-ethylphenylsulfonyl chloride; 88040-88-4; Benzenesulfonyl chloride, 5-ethyl-2-methoxy-; 5-Ethyl-2-methoxybenzenesulphonyl chloride
EINECS	Contact for details

Quality Control

Our 5-Ethyl-2-Methoxy-Benzenesulfonyl Chloride is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This product is hygroscopic (moisture-sensitive); therefore, containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen) if opened, to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (HPLC, Area%)	≥ 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.