(6R,7R)-7-((Z)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(((furan-2-carbonyl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid Ceftiofur Impurity

98%

None

Sealed in dry,2-8℃

Room temperature in continental US; may vary elsewhere.

C₁₉H₁₇N₅O₇S₃

523.56

Ceftiofur USP Impurity I,Δ3-Ceftiofur

OC(C1N2[C@@](SC=C1CSC(C3=CC=CO3)=O)([H])[C@@H](C2=O)NC(/C(C4=CSC(N)=N4)=N\OC)=O)=O

177.42

0.9794

12

3

8