Table 1.
UPLC-DAD-ESI-MSn data of detected and identified polyphenolic compounds in extracts of aerial parts of S. viridis.
| Compounds | Retention Time [min] | UV [nm] | [M − H]− | Fragmentation Ions | |
|---|---|---|---|---|---|
| 1 | 6-O-caffeoylglucose (I) | 10.6 | 324 | 341 | 323, 281, 251, 221, 179 |
| 2 | 6-O-caffeoylglucose (II) | 12.3 | 325 | 341 | 323, 281, 251, 221, 179 |
| 3 | 5-O-caffeoylquinic acid (chlorogenic acid) a | 12.8 | 325 | 353 | 191 |
| 4 | 4-O-caffeoylquinic acid (cryptochlorogenic acid) | 13.7 | 325 | 353 | 191, 173, 135 |
| 5 | caffeoyl-hexoside derivative | 18.7 | 325 | 537 | 519, 341, 281, 179 |
| 6 | luteolin-O-rutinoside | 22.1 | 253, 269, 344 | 593 | 285 |
| 7 | verbascoside a | 23.1 | 330 | 623 | 461, 315, 135 |
| 8 | forsythoside A | 24.5 | 326 | 623 | 461, 477, 315, 135 |
| 9 | isoverbascoside a | 25.0 | 326 | 623 | 461, 315, 135 |
| 10 | lipedoside A | 25.8 | 316 | 607 | 461, 443, 315, 297, 135 |
| 11 | dicaffeoylquinic acid | 26.0 | 328 | 515 | 353, 191, 179 |
| 12 | leucosceptoside A | 26.3 | 328 | 637 | 461, 315, 135 |
| 13 | apigenin-O-hexuronide | 26.7 | 267, 332 | 445 | 269, 149 |
| 14 | methylluteolin-O-hexuronide (chrysoeriol hexuronide) |
27.1 | 269, 343 | 475 | 299, 285, 175 |
| 15 | rosmarinic acid a | 27.7 | 327 | 359 | 197, 179, 161 |
| 16 | unidentified phenylethanoid | 28.4 | 328 | 803 | 641, 461, 443, 315 |
| 17 | luteolin-O-dihexoside | 29.7 | 255, 360 | 609 | 447, 429, 285 |
| 18 | martynoside | 30.3 | 328 | 651 | 505, 475, 457, 329 |
| 19 | isomartynoside | 31.1 | 328 | 651 | 505, 475, 457, 329, 193 |
a Identified with authentic standards, in bold—the most abundant fragmentation ion.