Description

Formic Acid, (Methylsulfonyl)-, Methyl Ester (9Ci) is a specialized organosulfur compound with a unique sulfonyl ester structure. This chemical is valued as a versatile building block and reagent in advanced organic synthesis, particularly for introducing the methylsulfonylformate moiety. It serves critical roles for research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries, where precise molecular construction is paramount.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring sulfone or ester functional groups.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Organic Synthesis Reagent: Acts as a methyl formyl sulfone transfer agent or a protected formic acid equivalent in complex multi-step reactions.
• Material Science Research: Employed in the development of novel polymers, ligands, and organic electronic materials.
• Chemical Derivatization: Useful for analytical chemistry applications and the preparation of specialized chemical standards.

Basic Information

Item	Detail
Product Name	Formic Acid, (Methylsulfonyl)-, Methyl Ester (9Ci)
CAS No.	60279-09-6
Molecular Formula	C3H6O4S
Molecular Weight	138.14 g/mol
Synonyms	Methyl (methylsulfonyl)formate; Methyl methanesulfonylformate; (Methylsulfonyl)formic acid methyl ester; Methanesulfonylformic acid methyl ester; Formic acid, (methylsulfonyl)-, methyl ester; Methyl mesylformate
EINECS	Contact for details

Quality Control

Our production of Formic Acid, (Methylsulfonyl)-, Methyl Ester adheres to stringent quality protocols. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) providing batch-specific results for identity, assay, and impurity profiles is available for all commercial and research quantities.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability. The container should be kept tightly sealed in a dry environment to minimize moisture uptake.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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