Cefixime Impurity 4

Chemical Name: 2-((((Z)-1-(2-aminothiazol-4-yl)-2-(((2R,2aR)-6-hydroxy-1,7-dioxo-2,2a,4,5,6,7-hexahydro-1H-azeto[2,1-b]cyclopenta[d][1,3]thiazin-2-yl)amino)-2-oxoethylidene)amino)oxy)acetic acid