1-AZABICYCLO(3.3.1)NONAN-2-OL, DIPHENYLACETATE, HYDROCHLORIDE 2-Diphenylacetoxy-1-azabicyclo(3.3.1)nonane hydrochloride 73855-72-8 Azabicyclononanol diphenylacetate hydrochloride Ro 2-3493