1,3-Dioxolo(4,5-g)isoquinoline, 5-(2,3-dimethoxybenzyl)-, hydrochloride 1-(2',3'-Dimethoxybenzyl)-6,7-methylenedioxyisoquinoline hydrochloride 5-(2,3-Dimethoxybenzyl)-1,3-dioxolo(4,5-g)isoquinoline hydrochloride JI4725300