3-(erythro-2-Cyclopentyl-2-hydroxy-2-phenylacetoxy)-1,1-dimethylpyrrolidiniumbromid 53808-86-9 Bromure de ritropirronio Bromure de ritropirronium Ritropirronium bromide Ritropirronium bromide [INN] erythro-3-Hydroxy-1,1-dimethylpyrrolidinium bromide alpha-cyclopentylmandelate.