1-Piperidineethanol, 4,4'-(1,3-propanediyl)bis- 1-Piperidineethanol, 4,4'-trimethylenedi- 18073-84-2 4,4'-(Propane-1,3-diyl)bis(piperidine-1-ethanol) EINECS 241-981-7 NSC 99743 S 43259-8