Trimethylsulfoxonium Bromide (TMSOBR) (CAS NO : 25596-24-1)

Trimethylsulfoxonium Bromide (CAS No: 25596-24-1) is a vital sulfoxonium salt that serves as an indispensable reagent in modern organic synthesis, particularly through the Corey-Chaykovsky reaction to facilitate the stereoselective construction of epoxides, cyclopropanes, and aziridines. In the global pharmaceutical sector, it functions as a critical synthetic building block for producing active pharmaceutical ingredients (APIs) such as methylcobalamin and various antiviral or antifungal agents, where its role in generating dimethylsulfoxonium methylide allows for the efficient formation of complex heterocyclic frameworks. Beyond medicinal chemistry, the compound is increasingly utilised in the agrochemical industry as a high-purity intermediate for the synthesis of advanced fungicides and insecticides like metconazole and chlorfenapyr, supporting the transition towards more selective and environmentally sustainable crop protection solutions. We are a globally established Trimethylsulfoxonium Bromide intermediates supplier with >= 99% purity, ensuring minimal carry-over of impurities in the final API, and a broad range of various pharmaceutical intermediates for API manufacturers and finished formulators, providing comprehensive analytical (HPLC/NMR/MS) and supporting Trimethylsulfoxonium Bromide COA/TDS/SDS region-specific regulatory support, reliable lead times, and worldwide supply chain capabilities.