1-Azoniabicyclo(2.2.2)octane, 3-hydroxy-1-(2-((2-oxo-2H-1-benzopyran-7-yl)oxy)ethyl)-, bromide 155272-59-6 Quinuclidinium, 3-hydroxy-1-(2-((2-oxo-2H-1-benzopyran-7-yl)oxy)ethyl)-, bromide