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3-Bromo-4-hydroxytetrahydrothiophene 1,1-dioxide; CAS No.: 35330-57-5;3-Bromo-4-hydroxytetrahydrothiophene 1,1-dioxide. PROPERTIES: 3-Bromo-4-hydroxytetrahydrothiophene 1,1-dioxide is a brominated heterocycle with a molecular weight of 227.01 g/mol. This white crystalline solid has a melting point between 65-68 C. The molecule features a tetrahydrothiophene ring substituted with a bromo group at position 3, a hydroxyl group at position 4, and a sulfoxide group at position 1,1. It demonstrates limited solubility in common organic solvents such as ethyl acetate and methanol but is sparingly soluble in water. Proper storage involves keeping in tightly sealed containers at room temperature, protected from light and moisture. Safety considerations include the bromine substituent's potential to cause skin irritation and the hydroxyl group's potential to form hydrogen bonds. Proper protective equipment should be utilized during handling. APPLICATIONS: This compound primarily serves as a building block in the synthesis of agrochemicals and pharmaceuticals, where the brominated thiophene structure provides essential binding affinity to target enzymes. In medicinal chemistry, it has been employed in developing antimicrobial agents targeting bacterial and fungal pathogens and has shown utility in creating herbicides with selective activity against grassy weeds. The thiophene 1,1-dioxide-hydroxy structure has also been explored in materials science for developing organic semiconductors, leveraging the extended conjugation to enhance charge carrier mobility. These applications are documented in publications from the Journal of Agricultural and Food Chemistry and Advanced Materials.