Description

Acetyl Methanesulfonate is a versatile sulfonate ester derivative used as a key reagent and intermediate in advanced organic synthesis. Its primary value lies in its role as an effective acetylating and methanesulfonylating agent, enabling critical transformations in the production of complex molecules. This compound is essential for research and development laboratories, as well as production facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce specific functional groups with high selectivity.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing acetyl or methanesulfonyl protecting groups.
• Agrochemical Synthesis: Used in the manufacturing of herbicides, fungicides, and plant growth regulators that require sulfonate ester functionalities.
• Polymer Chemistry: Serves as a monomer or modifying agent in the production of specialty polymers and resins with tailored properties.
• Organic Synthesis Reagent: Employed as a versatile reagent for esterification and sulfonylation reactions in academic and industrial R&D settings.
• Dye and Pigment Manufacturing: Acts as an intermediate in the synthesis of complex colorants and photoactive compounds.
• Material Science: Utilized in surface modification and the creation of advanced materials with specific surface functionalities.

Basic Information

Product Name	Acetyl Methanesulfonate
CAS No.	5539-53-7
Molecular Formula	C3H6O4S
Molecular Weight	138.14 g/mol
Synonyms	Acetyl methanesulfonate; Methanesulfonic acid acetyl ester; Acetyl methylsulfonate; Acetoxymethanesulfonate; Methylsulfonyl acetate; Acetyl mesylate; (Acetyloxy)methanesulfonic acid; Acetyl methanesulphonate
EINECS	226-879-3

Quality Control

Our Acetyl Methanesulfonate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay (HPLC), identity confirmation (IR, NMR), and impurity profiling, to ensure it meets the high-purity standards required for synthetic applications. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability and compliance with your specifications.

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 nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Density	~1.35 g/cm³

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