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| Cleavage | Composition of ions | Nominal mass | Mass shift | Observed m/z |
|---|---|---|---|---|
| a | C20H23N3O5S | 417 | +1 | 418 |
| a′ | C16H18NO10S | 416 | +2 | 418 |
| b | C18H20N3O4S | 374 | +2 | 376 |
| c | C18H19N2O4S | 359 | 0 | 359 |
| d | C17H19N2O3S | 331 | +2 | 333 |
| e | C16H18N2OS | 286 | +1 | 287 |
| f | C8H11N2 | 135 | 0 | 135 |
| f′ | C4H6O5 | 134 | +1 | 135 |
