Description

4-Ethoxy-5-Isopropyl-2-Methylbenzenesulfonyl Chloride is a high-purity, specialized sulfonyl chloride derivative, a critical building block in advanced organic synthesis. Its primary value lies in its role as a versatile sulfonylation reagent, enabling the introduction of a unique, sterically hindered sulfonyl group into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing novel active ingredients and fine chemicals where specific molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, especially sulfonamide-based therapeutics targeting various diseases.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and pesticides with enhanced efficacy and selectivity.
• Material Science Research: Serves as a monomer or modifying agent in the creation of specialized polymers and advanced functional materials.
• Chemical Biology & Proteomics: Employed as a reactive probe or labeling agent for studying protein interactions and enzyme activity.
• Custom Synthesis & Contract Manufacturing: A vital reagent for CROs and CDMOs producing bespoke compounds for client R&D pipelines.
• Dye & Pigment Industry: Intermediate in the synthesis of complex, high-performance colorants and imaging agents.

Basic Information

Item	Details
Product Name	4-Ethoxy-5-Isopropyl-2-Methylbenzenesulfonyl Chloride
CAS No.	1094231-26-1
Molecular Formula	C₁₃H₁₉ClO₃S
Molecular Weight	290.80 g/mol
Synonyms	1-Ethoxy-2-isopropyl-5-methyl-4-sulfonyl chloride benzene; 5-Isopropyl-4-ethoxy-2-methylbenzenesulfonyl chloride; 2-Methyl-4-ethoxy-5-isopropylbenzenesulfonyl chloride; 4-Ethoxy-5-isopropyl-o-toluenesulfonyl chloride; AESF; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Every batch of our 4-Ethoxy-5-Isopropyl-2-Methylbenzenesulfonyl Chloride is manufactured under strict quality management systems. We guarantee high chemical purity and consistency, supported by comprehensive analytical testing including HPLC, NMR, and IR spectroscopy. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to ensure it meets your precise research and production requirements.

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 sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from strong bases, oxidizing agents, and moisture.

Specification

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

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