Table 4.
Peak assignment for the HPLC–MS/MS analysis of the methanol extracts of Ferula drudeana.
| No | Rt (min) | [M-H]− (m/z) | Fragment Ion (m/z) | Identification | Reference |
|---|---|---|---|---|---|
| 1 | 9.3 | 353 | 353 (16), 191 (100), 179 (5) | 5-Caffeoylquinic acid (13) | [40,41] |
| 2 | 11.4 | 293 | 293 (100), 131 (20) | Unknown 4 | |
| 3 | 12.8 | 337 | 337 (16), 191 (100) | 5-p-Coumaroylquinic acid (14) | [40] |
| 4 | 17.4 | 515 | 191 (31), 179 (31), 173 (46), 135 (100) | Unknown 5 | |
| 5 | 18.7 | 515 | 515 (43), 353 (43) 191 (100) 179 (38) | 3,5-Dicaffeoylquinic acid (15) | [40] |
| 6 | 19.4 | 515 | 515 (23), 353 (35), 335 (5), 191 (100), 179 (12), 161 (9) | 1,5-Dicaffeoylquinic acid (16) | [41] |
| 7 | 19.7 | 447 | 447 (73), 285 (100) | Luteolin-7-glucoside (18) | [42] |
| 8 | 21.8 | 515 | 515 (17), 353 (17), 191 (39), 179 (44), 173 (100) | 4,5-Dicaffeoylquinic acid (17) | [41] |
| 9 | 23.1 | 431 | 431 (84), 268 (100) | Apigenin-7-glucoside (19) | [43] |
| 10 | 23.9 | 461 | 461 (100), 446 (32), 313 (11), 298 (42), 283 (37), 255 (68) | Hispidulin-7-glucoside (20) | [44] |