Table 2.
Metabolite information of SMZ in pigs, chickens and rats.
| Compound | Chemical Name | [M+H] (Da) | Formula | Major Product Ions |
|---|---|---|---|---|
| S0 | 4-Amino-N-(5-methyl-3-isoxazolyl) | 254.0521 | C10H11N3O3S | 156, 108, 92, 188, 99, 147 |
| S1 | N-Acetyl sulfamethoxazole | 296.0627 | C12H13N3O4S | 198, 134, 188 |
| S2 | 4-Amino-N-(5-hydroxymethyl-3-isoxazolyl) | 270.0564 | C10H11N3O4S | 252, 204, 156, 147, 108, 92 |
| S3 | 4-Hydroxyamino-N-(5-methyl-3-isoxazolyl) | 270.0564 | C10H11N3O4S | 204, 172, 108 |
| S4 | Sulfamethoxazole-N4-slufate | 334.0172 | C10H11N3O6S2 | 254, 156 |
| S5 | sulfamethoxazole- N4-glucuronide |
430.0945 | C16H19N3O9S | 332, 254, 156, 147, 99 |