Sub Group: Various Metabolites and Impurities Catalog Number: 6474 Formula: C8H10N2O3S CAS Number: 22252-43-3 Molecular Weight: 214.24 Synonyms: 6R,7R)-7-Amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid7-Amino-3-deacetoxycephalo