Ampicillin EP Impurity I ;
(2S,5R,6R)-6-[[(2R)-2-[[(2R)-2-Amino-2-phenylacetyl] amino]-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid ;
CAS # 10001-82-8 ;
D-Phenylglycylampicillin ;
C24H26N4O5S ;
MW: 482.55 ;