66591-60-4;1H-Tetrazole, 5-guanidino-;5-Guanidino-1H-tetrazole;5-Guanylaminotetrazole;AIDS-123978;AIDS123978;Guanidine, 1-(1H-tetrazol-5-yl)-;Guanidine, 1H-tetrazol-5-yl-;N-(1H-Tetraazol-5-yl)guanidine;NSC4438;NSC 4438