3 5 diamino 1h 1 2 4 triazole July 8, 2019 16 32 64 128 3 5-diamino-1 2 4-triazole 3 5-dibromo-1h-1 2 4-triazole 3 5-diamino-1 2 4-triazole synthesis 3-amino-1h-1 2 4-triazole-5-thiol 1 2 3-triazole-4 5-dicarboxylic acid