Keywords: Fazadinium.svg Skeletal formula of fazadinium Created using http //www acdlabs com/download/chemsk html ACD/ChemSketch 10 0 and Inkscape Own 2007-08-06 Fvasconcellos 16 17 6 August 2007 UTC Azo compounds Imidazoles Neuromuscular blocking agents Pyridines Quaternary ammonium compounds |