Cefixime EP Impurity B

Chemical Name: 2-[[[(Z)-1-(2-aminothiazol-4-yl)-2-[[[(2R,5RS)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl]methyl]amino]-2-oxoethylidene]amino]oxy]acetic acid

Smile: O=C(O)CO/N=C(C(NC[C@@]1([H])SCC([C@](C)([H])OC2=O)=C2N1)=O)/C3=CSC(N)=N3