1-Isoquinolineethanamine, 3,4-dihydro-6,7-dimethoxy-N,N,3,3-tetramethyl-, dihydriodide 132680-97-8 3,3-Dimethyl-6,7-dimethoxy-1-(2-dimethylaminoethyl)-3,4-dihydroisoquinoline dihydriodide