英文名称:(4S)-2-(((R)-2-Amino-2-phenylacetamido)(carboxy)-methyl)-5,5-dimethylthiazolidine-4-carboxylic; Ampicillin Impurity D (Mixture Of Diastereomers); (4S)-2-(((R)-2-Amino-2-Phenylacetamido)(Carboxy)-Methyl)-5,5-Dimethylthiazolidine-4-Carboxylic; Ampicillinepimpurityddisodiumsalt; 2-Amino-2-Phenylacetamido)(Carboxy)Methyl)-5,5-Dimethylthiazolidine-4-Carboxylic Acid(Mixture Of Diastereomers); Ampicillin Impurity D (Diastereomer Mixture)