167101-82-8 1H-Tetrazol-5-amine 1H-Tetrazole, 5-amino- 29212-86-0 29212-87-1 4418-61-5 5-AMINO-1H-TETRAZOLE 5-Amino-1,2,3,4-tetrazole 5-Aminotetrazole 76720-24-6 AI3-23021 Aminotetrazole EINECS 224-581-7 NSC 3004 Tetrazol-5-ylamine