19379-33-0

L-Ampicillin L-(+)-Ampicillin Ampicillin Impurity B(EP) (2S,5R,6R)-6-[[(2S)-2-Amino-2-pheny Ampicillin EP Impurity B (L-Ampicillin) Ampicillin impurity 1/Ampicillin?EP?impurity?B Ampicillin Impurity 2（Ampicillin EP Impurity B） 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-(2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-, L- (8CI) (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 (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 aci 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2S)-aminophenylacetyl]amino]-3,3-dimethyl-7-oxo-, (2S,5R,6R)- (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 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[(aminophenylacetyl)amino]-3,3-dimethyl-7-oxo-, [2S-[2α,5α,6β(R*)]]- 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2S)-2-amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-, (2S,5R,6R)-