Description

3-Chloro-5-Fluoro-2-Methylbenzene Sulfonyl Chloride is a high-purity, multi-functional chemical intermediate essential for advanced organic synthesis. Its core value lies in its dual reactive sites, the sulfonyl chloride and halogenated aromatic ring, which enable precise molecular construction. This compound is critically needed by research and development chemists and process engineers in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides, leveraging its halogen and sulfonyl groups for bioactivity.
• Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers and functional materials.
• Chemical Research: A versatile reagent in academic and industrial R&D for exploring new reaction pathways and creating complex molecular architectures.
• Dye and Pigment Manufacturing: Intermediate for synthesizing specialized sulfonated dyes and colorants with enhanced properties.

Basic Information

Product Name	3-Chloro-5-Fluoro-2-Methylbenzene Sulfonyl Chloride
CAS No.	306937-30-4
Molecular Formula	C7H5Cl2FO2S
Molecular Weight	251.08 g/mol
Synonyms	3-Chloro-5-fluoro-2-methylbenzenesulfonyl chloride; 2-Methyl-3-chloro-5-fluorobenzenesulfonyl chloride; 3-Chloro-5-fluoro-o-toluenesulfonyl chloride; 2-Methyl-3,5-dichlorobenzenesulfonyl chloride (related isomer); Benzenesulfonyl chloride, 3-chloro-5-fluoro-2-methyl-; 306937-30-4; 3-Chloro-5-fluoro-2-methylphenylsulfonyl chloride
EINECS	Contact for details

Quality Control

Our production of 3-Chloro-5-Fluoro-2-Methylbenzene Sulfonyl Chloride adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request 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). 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 degradation. Keep away from strong bases and oxidizing agents.

Specification

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

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