153804-57-0 2H-1-Benzopyran-3-amine, 3,4-dihydro-N-(4-((3,4-dihydro-2H-1-benzothiopyran-8-yl)oxy)butyl)-5-methoxy- 8-((4-((5-Methoxydihydro-(2H)-benzo(b)pyran-3-yl)amino)butyl)oxy)thiochroman