Synonyms: 1,4-Butanediaminium,N,N,N,N',N',N'-hexamethyl-, diiodide (9CI); Ammonium, tetramethylenebis[trimethyl-,diiodide (8CI); Tetramethylenebis[trimethylammonium iodide] (6CI,7CI);Butane-1,4-bis(trimethylammonium) iodide;N,N,N,N',N',N'-Hexamethyl-1,4-diaminobutane diiodide