1,1'-(13-Thiabicyclo(8.2.1)tridec-5-ene-2,9-diyl)bispiperidine 174198-13-1 2,9-Dipiperidino-13-thiabicyclo(8.2.1)tridec-5-ene Piperidine, 1,1'-(13-thiabicyclo(8.2.1)tridec-5-ene-2,9-diyl)bis-