Cefotaxime Sodium EP Impurity B

Chemical Name: (6R,7R)-7-[[(2Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetyl]amino]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (deacetylcefotaxime)

Smile: O=C1N2[C@@](SCC(CO)=C2C(O)=O)([H])[C@]1([H])NC(/C(C3=CSC(N)=N3)=N\OC)=O