dapsone1,1'-sulfonylbis(4-aminobenzene)4,4'-Sulfonylbisbenzenamine4,4'-dapsone4,4'-diaminodiphenyl sulfone4,4'-sulfonylbisaniline4-(4-amino-benzenesulfonyl)-phenylamine4-(4-aminophenylsulfonyl)aniline4-(4-aminophenylsulfonyl)benzenamine4-aminophenyl sulfoneBis(p-aminophenyl) sulfoneDADPSDAPSONEDDSDIAPHENYLSULFONEDapsoneDiaphenylsulfonebis(4-aminophenyl)sulfonep,p'-diaminodiphenyl sulfonep,p-sulphonylbisbenzaminep,p-sulphonylbisbenzenaminep-aminophenyl sulfone