Description

5-Chloro-2-Ethoxy-Benzenesulfonyl Chloride is a high-purity sulfonyl chloride derivative, a critical building block in advanced organic synthesis. Its primary value lies in its dual reactive sites, making it an essential intermediate for constructing complex molecules with specific functionalities. This compound is particularly vital for R&D chemists and process development teams in the pharmaceutical and agrochemical industries seeking to develop new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of advanced herbicides and pesticides, where the sulfonyl chloride moiety is incorporated for bioactivity.
• Dyestuff and Pigment Manufacturing: Serves as a precursor for creating specialized sulfonated dyes and colorants with enhanced properties.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialty polymers and functional materials.
• Chemical Research & Development: A versatile reagent for introducing the 5-chloro-2-ethoxy-benzenesulfonyl group into target molecules during exploratory synthesis.
• Liquid Crystal and Electronic Material Production: Used in the synthesis of intermediates for advanced materials requiring specific aromatic sulfone structures.

Basic Information

Product Name	5-Chloro-2-Ethoxy-Benzenesulfonyl Chloride
CAS No.	928709-67-5
Molecular Formula	C8H8Cl2O3S
Molecular Weight	255.12 g/mol
Synonyms	5-Chloro-2-ethoxybenzenesulfonyl chloride; 1-Chloro-4-ethoxy-2-sulfonylchloridebenzene; 2-Ethoxy-5-chlorobenzenesulfonyl chloride; Benzenesulfonyl chloride, 5-chloro-2-ethoxy-; 928709-67-5
EINECS	Contact for details

Quality Control

Our 5-Chloro-2-Ethoxy-Benzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR, to ensure it meets the high standards required for synthetic applications. 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 processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation. Keep away from heat, sparks, open flames, and incompatible materials such as bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (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.