1-(3,4-Diethoxybenzyl)-3,4-dihydro-6,7-diisopropoxyisoquinoline 69373-88-2 69373-95-1 BRL 40015 DIPROTEVERINE HYDROCHLORIDE Diproteverina [Spanish] Diproteverine Diproteverine [BAN:INN] Diproteverinum [Latin]