CAS No:N/A ||Chemical Formula:C22H22N8O9S3 ||Molecular Weight:638.64500 ||Exact Mass: 638.06719 ||(7R)-3-(acetoxymethyl)-7-((Z)-2-(2-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)thiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid