Description

4-Chloro-3-Methylphenyl Methanesulfonate is a specialized methanesulfonate ester derivative, serving as a crucial synthetic intermediate in advanced organic chemistry. Its primary value lies in its role as a versatile building block for constructing more complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and agrochemicals. This compound is essential for research and production chemists in the pharmaceutical, agrochemical, and fine chemical industries who require high-purity intermediates for synthesis and process development.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other specialty chemicals.
• Research & Development: A valuable reagent in academic and industrial R&D labs for method development and exploratory synthesis.
• Material Science: Potential use in the synthesis of monomers or additives for advanced polymeric materials.

Basic Information

Product Name	4-Chloro-3-Methylphenyl Methanesulfonate
CAS No.	90555-52-5
Molecular Formula	C9H11ClO3S
Molecular Weight	234.70 g/mol
Synonyms	1-Chloro-4-methyl-2-methanesulfonyloxybenzene; 3-Methyl-4-chlorophenyl methanesulfonate; 4-Chloro-m-cresyl methanesulfonate; Methanesulfonic acid 4-chloro-3-methylphenyl ester; p-Chloro-m-cresyl mesylate; Mesylate ester of 4-chloro-3-methylphenol
EINECS	Contact for details

Quality Control

Our 4-Chloro-3-Methylphenyl Methanesulfonate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the stringent requirements of our global clientele. Certificates of Analysis (COA) detailing purity, impurity profiles, and physical characteristics are provided with every shipment and are available upon request.

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 to prevent degradation from atmospheric moisture.

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%
Residue on Ignition	≤ 0.1%

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