CAS No:2384108-14-7,1798390-48-3(racemic)||Chemical Formula:C16H20N4O4S3||Molecular Weight:428.54000||Exact Mass: 428.06467||(7R)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-7-pivalamido-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid