Isethionic acid is a colorless, odorless organic compound with the chemical formula C2H5O4S. It is a sulfonic acid, which means it contains a sulfur atom bonded to a sulfonate group. This compound is primarily used in the production of surfactants and detergents, where it helps to improve cleaning efficiency and foaming properties. In addition to its industrial applications, isethionic acid is also of interest in the field of biochemistry. It is a naturally occurring compound in some biological systems and can play a role in various metabolic processes. Its unique structure allows it to interact with proteins and other biomolecules, making it a subject of research in understanding cellular functions.