Chemical Name: (2S,5R,6R)-6-[[(2S)-2-Amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (as per EP) (2S,5R,6R)-6-[(S)-2-Amino-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (as per USP)
Synonym: L-Ampicillin
Ampicillin EP Impurity B is chemically (2S,5R,6R)-6-[[(2S)-2-Amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (as per EP) (2S,5R,6R)-6-[(S)-2-Amino-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (as per USP). It is also known as L-Ampicillin. Ampicillin EP Impurity B is supplied with detailed characterization data compliant with regulatory guideline.
