1H-1,2,4-Triazole-3-carboxylic acid, 5-amino-, methyl ester (9CI) 3641-14-3 EINECS 222-869-7 Methyl 5-amino-1H-1,2,4-triazole-3-carboxylate NSC 139097 s-Triazole-3-carboxylic acid, 5-amino-, methyl ester