Bethanechol chloride(氯贝胆碱) CH O NH2 Bethanechol chloride 2-[(Aminocarbonyloxy-NN, N-trimethyl-l-propanaminium chloride CH H2 H3C (S)-Bethanechol Chloride(R)-Bethanechol Chloride 240 foldBethanechol Chloride （氯贝胆碱） 2-[(Aminocarbonyl)oxy]-N,N,N-trimethyl-1-propanaminium chloride (S)-Bethanechol Chloride N O NH2 O H CH3 N O NH2 O H3C H (R)-Bethanechol Chloride > 240 fold