2-Piperazinemethanol Dihydrochloride is a useful synthetic intermediate in the preparation of 4-substituted 1-(Arylacetyl)-2-[(dialkylamino)methyl]piperazines, which is a highly selective and potent class of κ-opioid receptor agonists. Molecular Formula: C5H12N2O.2HCl Molecular Weight: 189.08