A sulfone that is diphenylsulfone in which the hydrogen atom at the 4 position of each of the phenyl groups is substituted by an amino group. It is active against a wide range of bacteria, but is mainly employed for its actions against Mycobacterium leprae, being used as part of multidrug regimens in the treatment of all forms of leprosy. (Chemical Entities of Biological Interest Ontology, CHEBI_4325)