3-amino-5-methylthio-1h-1 2 4-triazole July 8, 2019 16 32 64 128 3-amino-1h-1 2 4-triazole-5-thiol 5-amino-4h-1 2 4-triazole-3-thiol 3-amino-1 2 4-triazole-5-thiol 2-amino-5-methyl-1 3 4-thiadiazole
