acetohmt aminoform aminoformaldehyde ammoform ammonioformaldehyde antihydral cystamin cystex cystogen duirexol ekagomh esametilentetramina formamine formin heksak heraxuts heterin hexab hexaform hexaloids hexamethylamine hexamethylenamine hexamethyleneamine hexamethylentetramin hexamine hexaminesilver hexaminesuperfine hexaminum hexasan hexilmethylenamine hmt mandelamine metenamina metenamine methamin methenamin methenaminesilver methenaminum metramine naphthamine noccelerh preparationaf resotropin sancelerh sancelerht silvermethenamine uramin uratrine urisol uritone urodeine urotropin urotropine vesaloin vesalvine xametrin