Product Name: Ampicillin

CAS#: 69-53-4 Chemical Formula: C16H19N3O4S Molecular Weight: 349.41 IUPAC Name: (2S,5R,6R)-6-((R)-2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Product Name: Ampicillin EP Impurity A CAS#: 551-16-6 Chemical Formula: C8H12N2O3S Molecular Weight: 216.26 IUPAC Name: (2S,5R,6R)-6-amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Product Name: Ampicillin EP Impurity B(L-Ampicillin)

CAS#: 19379-33-0 Chemical Formula: C16H19N3O4S Molecular Weight: 349.44 IUPAC Name: (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

Product Name: Ampicillin EP Impurity C(Ampicillin Diketopiperazine)

CAS#: 49841-96-5 Chemical Formula: C16H19N3O4S Molecular Weight: 349.41 IUPAC Name: (4S)-2-(3,6-dioxo-5-phenylpiperazin-2-yl)-5,5-dimethylthiazolidine-4-carboxylic acid

Product Name: Ampicillin EP Impurity D

CAS#: 1642629-93-3,32746-94-4 Chemical Formula: C16H21N3O5S Molecular Weight: 367.42 IUPAC Name: (2R,4S)-2-(((R)-2-amino-2-phenylacetamido)(carboxy)methyl)-2,5,5-trimethylthiazolidine-4-carboxylic acid

Product Name: Ampicillin EP Impurity E

CAS#: N/A Chemical Formula: C24H26N4O5S Molecular Weight: 482.55 IUPAC Name: Chemical Formula:(R)-2-((2S,5R,6R)-6-((R)-2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxamido)-2-phenylacetic acid

Product Name: Ampicillin EP Impurity F

 CAS#: N/A Chemical Formula: C15H21N3O3S Molecular Weight: 323.41 IUPAC Name: (4S)-2-(((R)-2-amino-2-phenylacetamido)methyl)-5,5-dimethylthiazolidine-4-carboxylic acid

Product Name: Ampicillin EP Impurity G

CAS#: 31485-02-6 Chemical Formula: C16H14N2O2 Molecular Weight: 266.30 "IUPAC Name: (3R,6R)-3,6-diphenylpiperazine-2,5-dione

Product Name: Ampicillin EP Impurity H

CAS#: N/A Chemical Formula: C10H8N2O Molecular Weight: 172.19 IUPAC Name: 3-phenylpyrazin-2-ol

Product Name: Ampicillin EP Impurity I

CAS#: N/A Chemical Formula: C24H26N4O5S Molecular Weight: 482.55 "IUPAC Name: (2S,5R,6R)-6-((R)-2-((R)-2-amino-2-phenylacetamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Product Name: Ampicillin EP Impurity J

CAS#: 6489-58-3 Chemical Formula: C13H20N2O4S Molecular Weight: 300.37 IUPAC Name:  Chemical Formula: C13H20N2O4S|(2S,5R,6R)-3,3-dimethyl-7-oxo-6-pivalamido-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Product Name: Ampicillin EP Impurity K

CAS#: N/A Chemical Formula: C13H17NO3 Molecular Weight: 235.12 IUPAC Name: (R)-2-phenyl-2-pivalamidoacetic acid

Product Name: Ampicillin EP Impurity L

CAS#: N/A Chemical Formula: C8H9NO2 Molecular Weight: 151.17 IUPAC Name: Chemical Formula: C8H9NO2|3(R)-2-amino-2-phenylacetic acid

Product Name: Ampicillin EP Impurity M

CAS#: 94730-51-5,62326-82-3(Disodium Salt) Chemical Formula: C32H38N6O8S2 Molecular Weight: 698.81 IUPAC Name: (2S,5R,6R)-6-((2R)-2-(2-((R)-2-amino-2-phenylacetamido)-2-((4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)acetamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Product Name: Ampicillin EP Impurity N

CAS#: N/A Chemical Formula: C16H19N3O4S Molecular Weight: 349.41 "IUPAC Name: (S)-6-((R)-2-amino-2-phenylacetamido)-2,2-dimethyl-7-oxo-2,3,4,7-tetrahydro-1,4-thiazepine-3-carboxylic acid

Product Name: Ampicillin Open-Ring Dimer

CAS#: N/A Chemical Formula: C32H40N6O9S2 Molecular Weight: 716.83 IUPAC Name:  Chemical Formula:C32H40N6O9S2|(4S)-2-(1-((R)-2-amino-2-phenylacetamido)-2-(((1R)-2-((carboxy((4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)methyl)amino)-2-oxo-1-phenylethyl)amino)-2-oxoethyl)-5,5-dimethylthiazolidine-4-carboxylic acid

Product Name: Ampicillin Closed-Ring Dimer

CAS#: N/A Chemical Formula: C34H41N5O8S Molecular Weight: 698.81 IUPAC Name: Chemical Formula:C34H41N5O8S|(4S)-2-(1-((R)-2-amino-2-phenylacetamido)-2-(((1R)-2-(((2R,5S,6S)-2-carboxy-3,3-dimethyl-7-oxobicyclo[3.2.0]heptan-6-yl)amino)-2-oxo-1-phenylethyl)amino)-2-oxoethyl)-5,5-dimethylthiazolidine-4-carboxylic acid

Product Name: Ampicillin EP Impurity Q

CAS#: N/A Chemical Formula: C48H57N9O12S3 Molecular Weight: 1048.22 IUPAC Name:(4S,4'S)-2,2'-((1R,7R,13R)-1-amino-14-(((2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-yl)amino)-2,5,8,11,14-pentaoxo-1,7,13-triphenyl-3,6,9,12-tetraazatetradecane-4,10-diyl)bis(5,5-dimethylthiazolidine-4-carboxylic acid)

Product Name: Ampicillin EP Impurity R

CAS#: N/A Chemical Formula: C24H29N5O6S2 Molecular Weight: 547.65 IUPAC Name:  Chemical Formula:C24H29N5O6S2|(2S,5R,6R)-6-((2S,5R,6R)-6-((R)-2-amino-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Product Name: Ampicillin EP Impurity S

CAS#: N/A Chemical Formula: C24H29N5O6S2 Molecular Weight: 547.65 IUPAC Name: Chemical Formula:C24H29N5O6S2|(2S,5R,6R)-6-((R)-2-((R)-2-amino-2-phenylacetamido)-2-((2R,4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid