1-methyl-1h-1 2 4-triazole July 8, 2019 16 32 64 128 3-bromo-1-(methyl-d3)-1h-1 2 4-triazole 1-methyl-1 2 4-triazole 1-methyl-1 2 3-triazole 3-methyl-1h-1 2 4-triazole 4-methyl-1 2 4-triazole