aceto hmt aminoform aminoformaldehyde ammoform ammonioformaldehyde antihydral cystamin cystex cystogen duirexol ekagom h esametilentetramina formamine formin h.m.t. heksa k herax uts heterin hexa b hexaform hexaloids hexamethylamine hexamethylenamine hexamethyleneamine hexamethylentetramin hexamine hexamine silver hexamine superfine hexaminum hexasan hexilmethylenamine metenamina metenamine methamin methenamin methenamine methenamine silver methenaminum metramine naphthamine nocceler h preparation af resotropin sanceler h sanceler ht silver methenamine uramin uratrine urisol uritone urodeine urotropin urotropine vesaloin vesalvine xametrin