1-Phenethyl-3-methyl-4-phenyl-4-propionyloxypiperidine hydrochloride 3-Methyl-1-phenethyl-4-phenyl-4-piperidinol propionate hydrochloride 4-Piperidinol, 3-methyl-1-phenethyl-4-phenyl-, propionate, hydrochloride 95437-11-9