Hysoscine Butylbromide EP Impurity B

(1R,2R,4S,5S,7s,9S)-9-butyl-7-(((S)-3-hydroxy-2-phenylpropanoyl)oxy)-9-methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-9-ium bromide-D9

(S)-(1R,2R,4S,5S,7s)-9-butyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-7-yl 3-hydroxy-2-phenylpropanoate

(1R,2R,4S,5S)-7-(((S)-3-hydroxy-2-phenylpropanoyl)oxy)-9,9-dimethyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-9-ium bromide