172753-32-1 Morpholine, 4,4'-((tetrahydro-2,5-thiophenediyl)bis(methylene))bis-, dihydrochloride, cis- cis-2,5-Di(morpholinomethyl)-1-thiacyclopentane dihydrochloride cis-4,4'-((Tetrahydro-2,5-thiophenediyl)bis(methylene))bismorpholine dihydrochloride