S,S-Diphenylsulfilimine Monohydrate is primarily utilized in organic synthesis as a versatile reagent. It acts as a key intermediate in the preparation of various sulfur-containing compounds, which are essential in the development of pharmaceuticals and agrochemicals. Its role in facilitating the formation of sulfoxides and sulfones is particularly notable, as these compounds are widely used in drug design and synthesis. Additionally, it is employed in asymmetric synthesis to produce chiral sulfoxides, which are crucial in the creation of enantiomerically pure drugs. The compound is also explored in material science for the development of advanced polymers and coatings, leveraging its unique chemical properties to enhance performance and stability.