Table 1 m/z values of castanospermin, celgosivir, and its oxidative impurities
Name of product | Molecular ion (m/z) | Collison energy (eV) | Fragment ions (m/z) |
|---|---|---|---|
Celgosivir | 260.10 | 0 | ND |
260.10 | 10 | 242,172,154,136,116,72 | |
260.10 | 20 | 242,172,154,136,126,116,98,80,72,56 | |
260.10 | 30 | 172,154,136,126,116,108,98,80,72,56 | |
260.10 | 50 | 136,126,116,108,98,80,72,56 | |
Castanospermin | 190.10 | 0 | ND |
190.10 | 10 | 172,154,136,86,72 | |
190.10 | 20 | 172,154,136,126,112,98,86,80,72,58 | |
190.10 | 30 | 172,154,136,118,112,100,86,69,56 | |
260.10 | 50 | 136,112,93,82,68,56 | |
Celgosivir | 276.10 | 0 | ND |
(Oxidative impurity) | 276.10 | 10 | 206,158 |
276.10 | 20 | 206,171,158,124,102,71 | |
276.10 | 30 | 206,171,158,145,114,86,68 | |
276.10 | 50 | 158,112,98,86,68 | |
Castanospermin | 206.10 | 0 | ND |
(Oxidative impurity) | 206.10 | 10 | 172 |
206.10 | 20 | 188,172,154,145,116,98,82 | |
206.10 | 30 | 188,172,154,145,128,116,98,86,68,57 | |
206.10 | 50 | 106,98,86,68,57 |