5807-56-7 6,7-Dimethoxy-1-(4'-ethoxy-3'-methoxybenzyl)-3-methyl-isoquinoline, hydrochloride Dioxyline hydrochloride ISOQUINOLINE, 1-(4-ETHOXY-3-METHOXYBENZYL)-6,7-DIMETHOXY-3-METHYL-, HYDROCHLORID Isoquinoline, 1-(4-ethoxy-3-methoxybenzyl)-6,7-dimethoxy-3-methyl-, hydrochloride Isoquinoline, 6,7-dimethoxy-1-(4'-ethoxy-3'-methoxybenzyl)-3-methyl-, hydrochloride