4,4'-Oxybis(dimethylsilylene)bis(trimethylene)dimorpholine dihydrochloride 84584-50-9 Morpholine, 4,4'-((1,1,3,3-tetramethyl-1,3-disiloxaonediyl)di-3,1-propanediyl)bis-, diHCl Morpholine, 4,4'-oxybis(dimethylsilylene)bis(trimethylene)di-, dihydrochloride