Table 6.
Compounds identified in rat urine after oral administration of Rubia cordifolia L. extract.
| NO. | RT | Mass Found | Error | MS2 Ions | Identification |
|---|---|---|---|---|---|
| (min) | (ppm) | ||||
| 1 | 22.24 | 349.0031 | 0.2 | 269, 254, 226 | Sulfation of 6-Hydroxyrubiadin |
| 2 | 28.89 | 254.0471 | 0.3 | 226, 183 | |
| 3 | 28.96 | 270.0505 | 0.1 | 255, 242, 227, 196 | |
| 4 | 29.53 | 269.0461 | 0.5 | 254, 241, 223, 195 | 6-Hydroxyrubiadin |
| 5 | 30.12 | 239.0350 | 0.6 | 211, 195, 167, 155 | Alizarin |
| 6 | 30.9 | 255.0304 | 0 | 227, 183, 171, 143, 129, 101 | Purpurin |
| 7 | 34.32 | 253.145 | 0.5 | 225, 209, 195 | Rubiadin |
| 8 | 34.37 | 269.0469 | 0 | 241, 225, 197, 182 |