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Table 2 HR-MS pseudo fragmentation profile for formulae confirm of the n-oxide impurity of castanospermin and celgosivir

From: Identification, method development, validation, and characterization of Aza sugars by an ion-chromatography, high-resolution mass spectrometer, and LC-MS/MS

Name of product

Fragmentation

Formulae

Castanospermin

190.1070 [M + H]+

C8H16NO4

 

172.0965

C8H14NO3

 

154.0872

C8H12NO2

 

136.0753

C8H10NO

 

112.0743

C6H10NO

n-Oxide impurity of CAS(unknown impurity)

206.1027 [M + H]+

C8H16NO5

 

172.0968

C8H14NO3

 

154.0857

C8H12NO2

Celgosivir

260.1486[M + H]+

C12H22NO5

 

172.0972

C8H14NO3

 

154.0834

C8H12NO2

 

242.1272

C12H20NO4

Oxide impurity of CEL(unknown impurity)

276.1448 [M + H]+

C12H22NO6

 

206.1008

C8H16NO5

 

158.0816

C7H12NO3