CAS No:89786-04-9(free base),89785-84-2(sodium)||Chemical Formula:C10H12N4O5S||Molecular Weight:300.28900||Exact Mass:300.05284||(2S,3S,5R)-3-((1H-1,2,3-triazol-1-yl)methyl)-3-methyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4,4-dioxide