4,4'-ethanediyldioxy-bis-benzenesulfonic acid bis-dipropylamide
4,4'-ethanediyldioxy-bis-benzenesulfonic acid bis-isopropylamide
4,4'-ethanediyldioxy-bis-benzenesulfonic acid bis-benzenesulfonylamide
4,4'-ethanediyldioxy-bis-benzenesulfonic acid bis-propylamide