Description

Methanesulfonic Acid, 1-(Methylsulfonyl)- is a specialized organosulfur compound with a unique dual-functional structure, serving as both a strong acid and a versatile organic solvent. This chemical is critical for advanced synthesis where precise control of acidity and solvation is required, offering superior performance over traditional mineral acids in sensitive applications. It is an essential intermediate and reagent for pharmaceutical development, agrochemical synthesis, and high-performance polymer research, meeting the stringent demands of modern industrial chemistry.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfonamide-based drugs.
• Catalyst & Reagent: Used as a strong, non-oxidizing acid catalyst in esterification, alkylation, and condensation reactions.
• Polymer Chemistry: Serves as a monomer or modifying agent in the production of specialty polymers, including polyelectrolytes and ion-exchange resins.
• Electroplating Additive: Employed in advanced electroplating baths for metals like tin and lead, where it provides excellent conductivity and smooth deposit morphology.
• Agrochemical Synthesis: Intermediate in the manufacture of herbicides, fungicides, and other crop protection agents.
• Organic Synthesis Solvent: Functions as a polar aprotic solvent for reactions requiring high acidity and stability.
• Chemical Research: Valuable reagent in laboratory-scale research for developing new synthetic methodologies.

Basic Information

Product Name	Methanesulfonic Acid, 1-(Methylsulfonyl)-
CAS No.	44820-79-3
Molecular Formula	C2H6O4S2
Molecular Weight	158.19 g/mol
Synonyms	1-(Methylsulfonyl)methanesulfonic Acid; Methanedisulfonic Acid, Methyl Ester; Methyl Methanedisulfonate; Methanesulfonic Acid Methylsulfonyl Ester; Disulfomethane; Methyl Methanedisulfonate; Methanedisulfonic Acid Methyl Ester
EINECS	Contact for details

Quality Control

Our production of Methanesulfonic Acid, 1-(Methylsulfonyl)- adheres to a strict quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes rigorous analytical testing, including assay by titration, identification by FT-IR, and impurity profiling by HPLC/GC. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and safety data is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its nature as a strong acid/organic solvent, ensure containers are clearly labeled and segregated from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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