(R*,S*)-4,4'-(1,2-diethyl-1,2-ethanediyl)dibenzenesulfonic acid 3563-47-1 60252-39-3 Benzenesulfonic acid, 4,4'-(1,2-diethyl-1,2-ethanediyl)bis- Benzenesulfonic acid, 4,4'-(1,2-diethyl-1,2-ethanediyl)bis-, (R*,S*)-