3,3'-Diaminodiphenyl sulfone 3,3'-Diaminophenyl sulfone 3,3'-Sulfonylbis(aniline) 3,3'-Sulfonyldianiline 3,3'-Sulfonyldianiline- 599-61-1 Aniline, 3,3'-sulfonyldi- Benzenamine, 3,3'-sulfonylbis- Bis(m-aminophenyl) sulfone NSC20610 Sulfone, bis(3-aminophenyl) Sulfone, bis(m-aminophenyl) WLN: ZR CSWR CZ