3,4-Dihydro-6,7-dimethoxy-N,N-dimethyl-1-phenyl-3-isoquinolineethanamine ethanedioate (1:2) 3-Isoquinolineethanamine, 3,4-dihydro-6,7-dimethoxy-N,N-dimethyl-1-phenyl-, ethanedioate (1:2) 83658-83-7