Description

Methanesulfonic Acid 3-Oxobutane-2-Yl Ester is a specialized organic ester of methanesulfonic acid, serving as a versatile chemical intermediate and building block in advanced synthesis. Its value lies in its unique reactivity profile, enabling precise molecular modifications that are critical for developing high-value fine chemicals and active pharmaceutical ingredients (APIs). This compound is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce sulfonate ester functionalities or create complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly where sulfonate ester groups are required for prodrug design or metabolic modulation.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, contributing to the development of compounds with enhanced efficacy and environmental profiles.
• Fine Chemical Manufacturing: Acts as a pivotal reagent in multi-step organic synthesis for creating complex molecules used in flavors, fragrances, and electronic chemicals.
• Polymer Chemistry: Employed as a monomer or modifying agent in the development of specialty polymers with tailored properties such as solubility, thermal stability, or ionic conductivity.
• Chemical Research & Development: A valuable tool for academic and industrial R&D laboratories exploring new reaction pathways, catalytic processes, and material science applications.

Basic Information

Product Name	Methanesulfonic Acid 3-Oxobutane-2-Yl Ester
CAS No.	77611-73-5
Molecular Formula	C6H10O4S
Molecular Weight	178.21 g/mol
Synonyms	2-Acetyl-1-methanesulfonyloxypropane; 1-Methanesulfonyloxy-2-butanone; 3-Oxobutan-2-yl methanesulfonate; Acetylpropyl methanesulfonate; Butan-2-one, 3-(methanesulfonyloxy)-; Methanesulfonic acid ester of 3-hydroxy-2-butanone; MSBE (abbreviation); Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our Methanesulfonic Acid 3-Oxobutane-2-Yl Ester is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets precise customer specifications and internal standards. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and strong oxidizing agents. Containers should be kept tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Residual Solvents (GC)	Meets ICH guidelines

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