L-Cephalexin

Chemical Name: (6R,7R)-7-((S)-2-Amino-2-phenylacetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; (6R,7R)-7-[[(2S)-2-amino-2-phenylacetyl]amino]-3-methyl-8-oxo-5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid

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