4506 R.P. 6,7-Dimethoxy-1-(2,3-dimethoxyphenyl)isoquinoline hydrochloride Chlorhydrate de (dimethoxy-2,3 phenyl)-1 dimethoxy-6,7-isoquinoleine [French] Isoquinoline, 6,7-dimethoxy-1-(2,3-dimethoxyphenyl)-, hydrochloride NW7926000