1-(4'-n-Butoxybutyn-2'-yl)-4-phenyl-propionyloxypiperidine hydrochloride 1-(4'-n-Butoxybutyn-2'yl)-4-phenyl-4-propionyloxypiperidine hydrochloride 1-(4-Butoxy-2-butynyl)-4-phenyl-4-piperidinol propionate (ester) hydrochloride 1-(4-Butoxy-2-butynyl)-4-phenyl-4-piperidinol propionate hydrochloride 4-Piperidinol, 1-(4-butoxy-2-butynyl)-4-phenyl-, propionate (ester), hydrochloride 78033-79-1