Description

Methylsulfenyl Trifluoromethanesulfonate is a highly reactive organosulfur reagent and electrophilic trifluoromethylthiolating agent. This compound is valued for its ability to efficiently introduce the SCF₃ group into organic molecules, a key functionalization in modern synthetic chemistry. It is primarily sought by researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors for the development of novel bioactive compounds and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key reagent for the late-stage trifluoromethylthiolation of drug candidates to modulate lipophilicity, metabolic stability, and bioavailability.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides where the SCF₃ group enhances biological activity and environmental persistence.
• Material Science: Employed in the synthesis of functional polymers and liquid crystals with unique electronic or surface properties.
• Organic Synthesis Building Block: Serves as a versatile electrophile for C-SCF₃, N-SCF₃, and O-SCF₃ bond formation in complex molecule construction.
• Radiopharmaceutical Labeling: Potential use in the synthesis of precursors for PET imaging agents containing fluorine-18.
• Catalysis Research: Investigated as a reagent in transition metal-catalyzed cross-coupling reactions for C-H functionalization.

Basic Information

Product Name	Methylsulfenyl Trifluoromethanesulfonate
CAS No.	84224-66-8
Molecular Formula	C₂H₃F₃O₃S₂
Molecular Weight	196.16 g/mol
Synonyms	Methyl Trifluoromethyl Disulfoxide; Trifluoromethylsulfenyl Methyl Sulfonate; Methylsulfinyl Trifluoromethanesulfonate; S-Methyl Trifluoromethanethiosulfonate; (Trifluoromethylsulfenyl)methyl Sulfonate; Methyl Trifluoromethylthiosulfonate; CF₃S(O)SCH₃; Methyl trifluoromethyl disulfoxide
EINECS	Contact for details

Quality Control

Our Methylsulfenyl Trifluoromethanesulfonate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and Karl Fischer titration, to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to cGMP standards where applicable to support our clients in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 2°C and 8°C. Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
NMR Purity (¹H/¹⁹F)	Conforms

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