CAS No:953037-71-3 ||Chemical Formula:C22H20N8O5S4 ||Molecular Weight: 604.69300 ||Exact Mass:604.04395 ||(6R,7R)-7-((Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(ethoxyimino)acetamido)-3-((4-(1-methylpyridin-1-ium-4-yl)thiazol-2-yl)thio)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate