3,4-Dihydro-6,7-dimethoxy-2-methylisoquinolinium 553-28-6 6,7-dimethoxy-2-methyl-3,4-dihydroisoquinolinium InChI=1/C12H16NO2/c1-13-5-4-9-6-11(14-2)12(15-3)7-10(9)8-13/h6-8H,4-5H2,1-3H3/q+ isoquinolinium, 3,4-dihydro-6,7-dimethoxy-2-methyl-