Description

Trimethylsulfonium Tetrafluoroborate is a versatile organosulfur salt widely used as a high-performance methylating agent in organic synthesis. Its value lies in its ability to efficiently transfer a methyl group under mild conditions, making it a critical reagent for constructing complex molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, particularly for fine chemical synthesis and process development.

Application

• Pharmaceutical Intermediate Synthesis: Key reagent for the methylation of heterocycles, phenols, and carboxylic acids in active pharmaceutical ingredient (API) development.
• Agrochemical Manufacturing: Used in the synthesis of certain herbicides and fungicides where selective methylation is required.
• Material Science Research: Employed as a precursor or methylating agent in the development of ionic liquids, electrolytes, and specialty polymers.
• Organic Synthesis & Catalysis: A valuable tool in academic and industrial labs for C-, O-, S-, and N-methylation reactions, often offering advantages over other methylating agents.
• Fine Chemical Production: Utilized in the manufacture of flavors, fragrances, and other high-value specialty chemicals requiring precise methylation steps.

Basic Information

Product Name	Trimethylsulfonium Tetrafluoroborate
CAS No.	676-88-0
Molecular Formula	C₃H₉S·BF₄
Molecular Weight	163.97 g/mol
Synonyms	Trimethylsulfonium Boron Tetrafluoride; Sulfonium, trimethyl-, tetrafluoroborate(1-); Trimethylsulfonium Fluoborate; Trimethylsulfonium BF4; TMS-BF4; Methylsulfonium Methylide Precursor; (Trimethylsulfonio)tetrafluoroborate
EINECS	211-637-9

Quality Control

Our Trimethylsulfonium Tetrafluoroborate is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing to ensure high purity and consistency, meeting the rigorous demands of synthesis and research. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, the product must be stored in a cool, dry place, ideally under an inert atmosphere such as nitrogen or argon to prevent moisture absorption. Recommended long-term storage temperature is 2-8°C. The container should be kept tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Heavy Metals	< 20 ppm

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