Cefalexin EP Impurity C

Chemical Name: (6R,7R)-7-[[(2R)-2-[[(2R)-2-Amino-2-phenylacetyl]amino]-2-phenylacetyl] amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per EP)

Smile: [H][C@@]1(NC(C(NC([C@H](N)C2=CC=CC=C2)=O)C3=CC=CC=C3)=O)C(N(C(C(O)=O)=C(C)CS4)[C@@]14[H])=O