neostigmine and its Impurities
Neostigmine is used to treat myasthenia gravis, Ogilvie syndrome, and urinary retention without the presence of a blockage. It is sold under the brand name Bloxiverz. Reference standards of Neostigmine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


5-((Dimethylcarbamoyl)oxy)-2-(2-((dimethylcarbamoyl)oxy)-4-(trimethylammonio)benzyl)-N,N,N-trimethylbenzenaminium Bromide Methyl Sulfate
5-((Dimethylcarbamoyl)oxy)-2-(2-((dimethylcarbamoyl)oxy)-4-(trimethylammonio)benzyl)-N,N,N-trimethylbenzenaminium Bromide Methyl Sulfate
Catalogue No.:PA 14 69540
CAS :
NA
Molecular Formula : C26H41BrN4O8S
Molecular Weight : 649.6


3-((Dimethylcarbamoyl)oxy)-4-(((3-((dimethylcarbamoyl)oxy)phenyl)(methyl)amino)methyl)-N,N,N-trimethylbenzenaminium Bromide Methyl Sulphate
3-((Dimethylcarbamoyl)oxy)-4-(((3-((dimethylcarbamoyl)oxy)phenyl)(methyl)amino)methyl)-N,N,N-trimethylbenzenaminium Bromide Methyl Sulphate
Catalogue No.:PA 14 69550
CAS :
NA
Molecular Formula : C24H37BrN4O8S
Molecular Weight : 621.54


Mono(4-(2-(dimethylammonio)-4-((dimethylcarbamoyl)oxy)benzyl)-3-((dimethylcarbamoyl)oxy)-N,N,N-trimethylbenzenaminium) dibromide bis(methyl sulfate)
Mono(4-(2-(dimethylammonio)-4-((dimethylcarbamoyl)oxy)benzyl)-3-((dimethylcarbamoyl)oxy)-N,N,N-trimethylbenzenaminium) dibromide bis(methyl sulfate)
Catalogue No.:PA 14 0691000
CAS :
NA
Molecular Formula : C26H42Br2N4O12S22-
Molecular Weight : 826.57


5-((Dimethylcarbamoyl)oxy)-2-(2-((dimethylcarbamoyl)oxy)-4-(trimethylammonio)benzyl)-N,N,N-trimethylbenzenaminium methyl sulfate
5-((Dimethylcarbamoyl)oxy)-2-(2-((dimethylcarbamoyl)oxy)-4-(trimethylammonio)benzyl)-N,N,N-trimethylbenzenaminium methyl sulfate
Catalogue No.:PA 14 0691001
CAS :
NA
Molecular Formula : C27H44N4O12S2
Molecular Weight : 680.79


Mono(3-((dimethylcarbamoyl)oxy)-4-(((3-((dimethylcarbamoyl)oxy)phenyl)(methyl)amino)methyl)-N,N,N-trimethylbenzenaminium) monobromide mono(methyl sulfate)
Mono(3-((dimethylcarbamoyl)oxy)-4-(((3-((dimethylcarbamoyl)oxy)phenyl)(methyl)amino)methyl)-N,N,N-trimethylbenzenaminium) monobromide mono(methyl sulfate)
Catalogue No.:PA 14 0691002
CAS :
NA
Molecular Formula : C24H36BrN4O8S
Molecular Weight : 620.54