Synonyms: 4H-1,2,4-Triazole-3-thiol,4-amino- (7CI);D2-1,2,4-Triazoline-5-thione, 4-amino- (8CI);1-Amino-2-mercapto-1H-1,3,4-triazole;4-Amino-1,2,4-triazole-5-thiol;4-Amino-1,2,4-triazole-5-thione;4-Amino-1,2,4-D2-triazoline-5-thione;4-Amino-3-mercapto-1,2,4-triazole;4-Amino-4H-1,2,4-triazole-3-thiol;4-Amino-5-mercapto-1,2,4-triazole;4-Amino-5-mercapto-s-triazole;NSC 156612;