Keywords: Propantheline.svg Skeletal formula of propantheline Created using http //www acdlabs com/download/chemsk html ACD/ChemSketch 10 0 and Inkscape Own 2007-04-23 Fvasconcellos 00 39 24 April 2007 UTC Carboxylate esters Muscarinic antagonists Quaternary ammonium compounds Xanthenes |