1-(2,2-Diethoxyethyl)piperidine 1-Piperidineacetaldehyde, diethyl acetal 3616-58-8 4-20-00-00865 (Beilstein Handbook Reference) BRN 0109383 EINECS 222-802-1 NSC 66158 Piperidine, 1-(2,2-diethoxyethyl)- (9CI)