1-Azoniabicyclo(2.2.2)octane, 3-hydroxy-1-(2-((4-methyl-2-oxo-2H-1benzopyran-7-yl)oxy)ethyl)-, bromide 155272-60-9 Quinuclidinium, 3-hydroxy-1-(2-((4-methyl-2-oxo-2H-1-benzopyran-7-yl)oxy)ethyl)-, bromide