2-((Cyclopentylhydroxyphenylacetyl)oxy)-5-azoniaspiro(4.4)nonane bromide 2-(2-Cyclopentyl-2-hydroxy-2-phenylacetoxy)-5-azoniaspiro(4.4)nonane bromide 5-Azoniaspiro(4.4)nonane, 2-((cyclopentylhydroxyphenylacetyl)oxy)-, bromide 76302-54-0