Tetramethylammonium hydrogen sulfate (TMAHS) is a quaternary ammonium salt that has gained significant attention in various fields of research, including medical, environmental, and industrial research. TMAHS is a white crystalline powder that is soluble in water and organic solvents. It is commonly used as a phase transfer catalyst, surfactant, and electrolyte in various chemical reactions. This paper aims to provide a comprehensive review of TMAHS, including its method of synthesis or extraction, chemical structure, biological activity, biological effects, applications, future perspectives, and challenges.
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