SMILES: CC1=C(N2[C@@H]([C@@H](C2=O)NC(=O)[C@@H](C3=CC=CC=C3)N)SC1)C(=O)[O-]
Description: The molecule is the anion resulting from the removal of a proton from the carboxylic acid group of cephalexin. It is a conjugate base of a cephalexin.