1-(2-Hydroxyethyl)piperidine 1-Oxa-4-azaspiro(3.5)nonane (VAN) 1-PIPERIDINEETHANOL 2-(1-Piperidinyl)ethanol 2-Piperidineethanol 2-Piperidinoethanol 3040-44-6 5-20-02-00101 (Beilstein Handbook Reference) AI3-11737 BRN 0103390 EINECS 221-244-6 N-(2-Hydroxyethyl)piperidine N-(Hydroxyethyl)piperidine N-Piperidineethanol NSC 3460 beta-Piperidinoethanol beta-Piperidylethanol