172753-33-2 Piperidine, 1,1'-((tetrahydro-2,5-thiophenediyl)bis(methylene))bis-, dihydrochloride, cis- cis-1,1'-((Tetrahydro-2,5-thiophenediyl)bis(methylene))bispiperidine dihydrochloride cis-2,5-Di(piperidinomethyl)-1-thiacyclopentane dihydrochloride