sulbactam and its Impurities
An irreversible beta-lactamase inhibitor, Sulbactam is given along with the beta-lactam antibiotics to inhibit β-lactamase ( enzyme produced by bacteria) that destroys the antibiotics. Reference standards of Sulbactam API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(2S,5R,6S)-6-Bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4,4-dioxide
(2S,5R,6S)-6-Bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4,4-dioxide
Catalogue No.:PA 19 43530
CAS :
75527-88-7
Molecular Formula : C8H10BrNO5S
Molecular Weight : 312.13


(2S,5R,6S)-6-Bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4-oxide
(2S,5R,6S)-6-Bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4-oxide
Catalogue No.:PA 19 43540
CAS :
79703-02-9
Molecular Formula : C8H10BrNO4S
Molecular Weight : 296.14


(2S,5R,6R)-6-Bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4-oxide
(2S,5R,6R)-6-Bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4-oxide
Catalogue No.:PA 19 43550
CAS :
79611-43-1
Molecular Formula : C8H10BrNO4S
Molecular Weight : 296.14


(2S,5R)-6,6-Dibromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-oxide
(2S,5R)-6,6-Dibromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-oxide
Catalogue No.:PA 19 43560
CAS :
128657-18-1
Molecular Formula : C8H9Br2NO4S
Molecular Weight : 375.03


(2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4-oxide
(2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4-oxide
Catalogue No.:PA 19 43570
CAS :
4888-97-5
Molecular Formula : C8H12N2O4S
Molecular Weight : 232.25


(2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4,4-dioxide
(2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid 4,4-dioxide
Catalogue No.:PA 19 43580
CAS :
36091-15-3
Molecular Formula : C8H12N2O5S
Molecular Weight : 248.25