Cefadroxil USP Related Impurity O

Chemical Name: (6R,7R)-7-[(R)-2-{(6R,7R)-7-[(R)-2-amino-2-(4-hydroxyphenyl)acetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxamido}-2-(4-hydroxyphenyl)acetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per USP)

Smile: O=C(C(N12)=C(C)CS[C@]2([H])[C@H](NC([C@H](NC(C(N34)=C(C)CS[C@]4([H])[C@H](NC([C@H](N)C5=CC=C(O)C=C5)=O)C3=O)=O)C6=CC=C(O)C=C6)=O)C1=O)O