1-(2-Hydroxyethyl)piperidine hydrochloride 1-Piperidineethanol, hydrochloride 2-(1-Piperidinyl)ethanol hydrochloride 2-Piperidinoethanol hydrochloride 33265-79-1 N-(2-Hydroxyethyl)piperidine hydrochloride N-(Hydroxyethyl)piperidine hydrochloride beta-Piperidinoethanol hydrochloride beta-Piperidylethanol hydrochloride