(6R,7R)-3-(Acetoxymethyl)-7-(2-bromoacetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 10mg

(6R,7R)-3-(Acetoxymethyl)-7-(2-bromoacetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 10mg