Description

4-Ethoxy-3-Methylbenzenesulfonyl Chloride (Saltdata: Free) is a high-purity, versatile sulfonyl chloride derivative used as a key synthetic intermediate in advanced organic synthesis. Its primary value lies in its reactivity as a sulfonylation agent, enabling the introduction of the sulfonyl functional group to construct complex molecules with precision. This compound is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries, where it serves as a critical building block for active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly sulfonamide-based therapeutics.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dyestuff and Pigment Manufacturing: Serves as a precursor for creating sulfonated dyes and specialty colorants.
• Polymer Chemistry: Employed in the modification of polymers and the synthesis of specialty monomers.
• Chemical Research & Development: A valuable reagent for method development and exploring new synthetic pathways in academic and industrial labs.
• Liquid Crystal and Electronic Material Production: Used in the synthesis of sulfone-based compounds for advanced material applications.

Basic Information

Item	Details
Product Name	4-Ethoxy-3-Methylbenzenesulfonyl Chloride (Saltdata: Free)
CAS No.	69129-64-2
Molecular Formula	C10H13ClO3S
Molecular Weight	248.72 g/mol
Synonyms	3-Methyl-4-ethoxybenzenesulfonyl chloride; 4-Ethoxy-3-methylbenzene-1-sulfonyl chloride; 1-Ethoxy-2-methyl-4-(chlorosulfonyl)benzene; p-Ethoxy-m-toluenesulfonyl chloride; 4-Ethoxy-3-methylphenylsulfonyl chloride; 3-Methyl-4-ethoxyphenylsulfonyl chloride; Benzenesulfonyl chloride, 4-ethoxy-3-methyl-
EINECS	Contact for details

Quality Control

Our 4-Ethoxy-3-Methylbenzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specification parameters. Our quality commitment ensures the material meets the high standards required for GMP-influenced synthesis and critical research 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 (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
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.