Ipratropium Bromide standard

(1R,3r,5S,8r)-3-((3-Hydroxy-2-phenylpropanoyl)oxy)-8-isopropyl-8-methyl-8-azabicyclo[3.2.1]octan-8-ium bromide; 8-Isopropylatropinium bromide; N-Isopropylatropinium bromide; 8-Azoniabicyclo[3.2.1]octane, 3-(3-hydroxy-1-oxo-2-phenylpropoxy)-8-methyl-8-(1-methylethyl)-, bromide, (endo,syn)-(±); N-Isopropylnoratropinium Bromomethylate;