(R*,R*)-(+-)-4,4'-(1,2-Bis(hexylamino)-1,2-ethanediyl)bisphenol dihydrochloride 81698-50-2 Phenol, 4,4'-(1,2-bis(hexylamino)-1,2-ethanediyl)bis-, dihydrochloride, (R*,R*)-(+-)-