2429-86-9

Cefazolin Impurity 3 Cephalosporin Impurity Cefmenoxime Impurity 38 Cephalosporin Impurity 3 HCl D-Lysine, 6-oxo-N6-[(5aR,6R)-1,4,5a,6-tetrahydro-1,7-dioxo-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl]- 2-amino-6-(((5aR,6R)-1,7-dioxo-1,3,4,5a,6,7-hexahydroazeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)amino)-6-oxohexanoic acid