European Pharmacopoeia (EP) Reference Standard Synonym(s): (1 R ,2 R ,4 S ,5 S ,7s)-3-Oxa-9-azatricyclo[3.3.1.0 2,4 ]non-7-yl (2 S )-3-hydroxy-2-phenylpropanoate; Norhyoscine; Norscopolamine Empirical Formula: C16H19NO4 Formula Weight: 289.33 Linear Formula:...