S,S-Diphenylsulfilimine monohydrate is a versatile synthetic tool and has been used in preparation of:N-(5-nitrosouracil-6-yl)sulfiliminesN-(1,3-dimethyl-6-uracilyl)-S,S-diphenylsulfiliminesN-(5-formyl-1,3-dimethyl-6-uracilyl)-S,S-diphenylsulfilimines