Chemical Name: (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 hydrochloride
Synonym: D-Phenylglycylampicillin
Chemical Name: (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 hydrochloride
Synonym: D-Phenylglycylampicillin
Ampicillin EP Impurity I HCl is chemically (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 hydrochloride. It is also known as D-Phenylglycylampicillin. Ampicillin EP Impurity I HCl is supplied with detailed characterization data compliant with regulatory guideline.