Synonyms: 8-Azoniabicyclo[3.2.1]octane,3-(3-hydroxy-1-oxo-2-phenylpropoxy)-8-methyl-8-(1-methylethyl)-, bromide,[3(S)-(endo,syn)]-; 8-Azoniabicyclo[3.2.1]octane,3-[(2S)-3-hydroxy-1-oxo-2-phenylpropoxy]-8-methyl-8-(1-methylethyl)-, bromide,(3-endo,8-syn)- (9CI); l-Ipratropium bromide