2,6-Methano-3-benzazocin-11-beta-ol, 1,2,3,4,5,6-hexahydro-6-ethyl-8-methoxy-3-methyl-, acetate (ester), hydrochloride 63903-69-5 alpha-9-Acetoxy-5-ethyl-2'-methoxy-2(N)-methyl-6,7-benzomorphan hydrochloride