CAS No:56796-20-4 ||Chemical Formula:C15H17N7O5S3 ||Molecular Weight:471.52500 ||Exact Mass:471.04533 ||(6R,7S)-7-(2-((cyanomethyl)thio)acetamido)-7-methoxy-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid