Table 4 In vivo phase II MST metabolites
Mass scan | Daughter ions | Retention time (min) | Phase II metabolic pathway | |
|---|---|---|---|---|
MG1 | 675 | 499, 399 | 18.93 | Direct N-conjugation with glucuronic acid |
MG2 | 661 | 485 | 18.77 | N-demethylation and direct N-conjugation with glucuronic acid |
MG3 | 691 | 514.8 | 18.7 | Glucuronidation of hydroxy MST at N-methyl piperazine ring |
MG4 | 691 | 515.3, 414.9 | 19.46 | Glucuronidation of hydroxy MST at benzyl carbon |