hexafluorenium [ Mallinckrodt Brand of Hexafluronium Bromide,Mylaxen,hexafluorenium bromide,hexafluorenium dibromide salt,hexafluronium bromide,hexamethylenebis(fluoren-9-yldimethylammonium) dibromide ] curarimimetic agent for use with succinylcholine; muscle relaxant; structure; RN given refers to parent cpd