.beta.-Piperidinoethanol .beta.-Piperidylethanol 1-(2-Hydroxyethyl)piperidine 1-Oxa-4-azaspiro[3.5]nonane 1-Piperidineethanol 2-(1-Piperidinyl)ethanol 2-Piperidinoethanol 3040-44-6 N-(2-Hydroxyethyl)piperidine N-(Hydroxyethyl)piperidine NSC3460