1-(3',4'-Diethoxybenzyl)-6,7-diisoprooxy-3,4-dihydroisoquinoline hydrochloride 69373-88-2 69373-95-1 Isoquinoline, 3,4-dihydro-6,7-bis(1-methylethoxy)-1-((3,4-diethoxyphenyl)methyl)-, hydrochloride