1,3-Propanediamine, 2-(diphenylmethoxy)-N,N,N',N'-tetraethyl-, dihydrochloride 2-(Diphenylmethoxy)-N,N,N',N'-tetraethyl-1,3-propanediamine dihydrochloride Benzohydryl bis(diethylamino)isopropyl ether dihydrochloride TX8032400