label: 2,5-dimethyl-9 alpha-ethyl-2'-hydroxy-6,7-benzomorphan, hydrochloride, (2alpha,6alpha,11R*)-(-)-isomer
label_lc: 2,5-dimethyl-9 alpha-ethyl-2'-hydroxy-6,7-benzomorphan, hydrochloride, (2alpha,6alpha,11r*)-(-)-isomer