Description

(3-Chloro-4-Methoxyphenyl)Methanesulfonyl Chloride is a high-purity, specialized organic intermediate of significant importance in advanced chemical synthesis. This compound serves as a critical building block for the development of complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is primarily sought after by research institutions and industrial manufacturers engaged in the synthesis of active pharmaceutical ingredients (APIs) and novel crop protection agents.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs), particularly those requiring a sulfonamide or sulfonyl chloride functional group.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides, where its specific substitution pattern can contribute to biological activity.
• Material Science Research: Employed as a monomer or cross-linking agent in the development of specialized polymers and functional materials.
• Chemical Biology & Proteomics: Acts as a reactive handle for bioconjugation and the development of chemical probes to study biological systems.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for use in client-specific, multi-step synthetic routes.

Basic Information

Product Name	(3-Chloro-4-Methoxyphenyl)Methanesulfonyl Chloride
CAS No.	1194375-53-5
Molecular Formula	C8H8Cl2O3S
Molecular Weight	255.12 g/mol
Synonyms	1-Chloro-3-(chlorosulfonyl)-4-methoxybenzene; 3-Chloro-4-methoxybenzenemethanesulfonyl chloride; 4-Methoxy-3-chlorophenylmethanesulfonyl chloride; (3-Chloro-4-methoxyphenyl)methanesulfonyl chloride; 3-Chloro-4-methoxybenzylsulfonyl chloride; (3-Chloro-4-methoxyphenyl)methylsulfonyl chloride; 1-(Chlorosulfonylmethyl)-3-chloro-4-methoxybenzene
EINECS	Contact for details

Quality Control

Our (3-Chloro-4-Methoxyphenyl)Methanesulfonyl Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to verify identity and purity. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory needs.

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 degradation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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