aminoform aminoformaldehyde ammoform ammonioformaldehyde antihydral carin cystamin cystex cystogen duirexol esametilentetramina formamine formin grasselerator heterin hexaform hexaloids hexamethylamine hexamethylenamine hexamethyleneamine hexamethylentetramin hexamine hexaminum hexasan hexilmethylenamine metenamina metenamine methamin methamine methenamin methenaminum metramine naphthamine pellurin resotropin uramin urasal uratrine urisol uritone urodeine urotropin urotropine vesaloin xametrin