Sodium (6R,7R)-3-(((1,3,4-thiadiazol-2-yl)thio)methyl)-7-(2-(1H-tetrazol-1-yl)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
Sodium 1,3,4-thiadiazole-2-carboxylate
Sodium 5-(pyridin-3-yl)-1,3,4-thiadiazole-2-carboxylate
