(1R,2R,4S,5S,7s)-9-methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-7-yl (S)-3-hydroxy-2-phenylpropanoate hydrochloride; Hyoscine Butylbromide EP Impurity A HCl
(1R,2R,4S,5S,7s)-9-methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-7-yl (S)-3-hydroxy-2-phenylpropanoate hydrochloride; Hyoscine Butylbromide EP Impurity A HCl