4,4'-Diaminodiphenyl sulfone 4,4'-Sulfonylbisbenzamine 80-08-0 AIDS-005738 AIDS005738 Acedapsone Bis(4-aminophenyl)sulfone DDS Dapsone NSC6091 Sulfadione Sulfona;Diaminodiphenylsulfone;4-Aminophenylsulfone Sulfonyldianiline Sumicure S Udolac