Description

Difluoromethanesulphonic Acid is a highly reactive organosulfur compound characterized by its strong acidity and the presence of fluorine atoms. This unique structure makes it a valuable fluorinating agent and catalyst in advanced organic synthesis, particularly for introducing fluorine into complex molecules. It is primarily utilized by pharmaceutical, agrochemical, and specialty chemical industries for research, process development, and manufacturing.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of fluorinated active pharmaceutical ingredients (APIs) and novel drug candidates.
• Agrochemical Synthesis: Used in the production of fluorinated pesticides and herbicides to enhance their biological activity and environmental stability.
• Catalyst in Organic Reactions: Acts as a potent Brønsted acid catalyst for esterification, alkylation, and other acid-catalyzed transformations.
• Electrolyte Additive: Investigated for use in advanced lithium-ion battery electrolytes to improve performance and stability.
• Polymer Modification: Employed to introduce sulfonic acid and fluorine functional groups into polymers for specialty materials.
• Laboratory Reagent: Serves as a specialized reagent in research laboratories for fluorination and sulfonation studies.

Basic Information

Product Name	Difluoromethanesulphonic Acid
CAS No.	40856-07-3
Molecular Formula	CH2F2O3S
Molecular Weight	132.09 g/mol
Synonyms	Difluoromethanesulfonic Acid; Difluoromethylsulfonic Acid; Methanesulfonic Acid, Difluoro-; DFMSA; (Difluoromethyl)sulfonic Acid; NSC 403016; EINECS 255-112-1
EINECS	255-112-1

Quality Control

Our Difluoromethanesulphonic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay by titration and impurity profile analysis by chromatographic methods, to ensure it meets high-purity standards suitable for synthetic applications. Certificates of Analysis (COA) documenting purity, identity, and specific impurities are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area. Due to its nature as a strong acid/organic solvent, it should be kept away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %

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