| 4,4'-sulfonylbis(4-phenyleneoxy)di-anilin |
| 4,4'-(sulfonylbis(4,1-phenyleneoxy))bisbenzenamine |
| 4,4'-sulfonylbis(4-phenyleneoxy)dianiline |
| 4,4'-(sulfonylbis(p-phenyleneoxy))di-anilin |
| 4,4'-(sulfonylbis(4,1-phenyleneoxy))bis-benzenamin |
| 4,4'-[sulfonylbis(4,1-phenyleneoxy)]bis-benzenamin |
| bis(4-aminophenoxyphenyl)sulfone |
| sulfonyl diamine |
| bisaminophenoxyphenylsulfone |
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