1-(4'-n-Butoxybuten-2'-yl)-4-phenyl-4-propionyloxypiperidine hydrochloride 1-(4-Butoxy-2-butenyl)-4-phenyl-4-piperidinol propionate (ester) hydrochloride 1-(4-Butoxy-2-butenyl)-4-phenyl-4-piperidinol propionate hydrochloride 4-Piperidinol, 1-(4-butoxy-2-butenyl)-4-phenyl-, propionate (ester), hydrochloride 78033-80-4