Table 2.
Spectrometric data, identification and molecular formula of phenolic constituents of ethanolic extract from Origanum vulgare ssp. vulgare aerial part.
| Compound | Rt (min) | λmax (nm) | [M–H]– (m/z) | Fragment Ions (m/z) | Tentative Identification | Molecular Formula |
|---|---|---|---|---|---|---|
| 1 | 1.1 | 296 sh, 324 | 179.05 | 135.04, 89.03 | Caffeic acid (3,4-Dihydroxycinnamic acid) |
C9H8O4 |
| 2 | 0.9 | 287 sh, 331 | 341.07 | 179.03, 149.04, 96.95 | Caffeic acid 4-α-glucoside | C15H18O9 |
| 3 | 1.3 | 287 sh, 329 | 353.10 | 191.01, 179.03 | Chlorogenic acid | C16H18O9 |
| 4 | 1.4 | 287 sh, 329 | 879.05 | 717, 1-, 179.05, 96.95 | Caffeic acid tetramer glucoside (Rabdosiin 7-O-β-glucoside) |
C42H40O21 |
| 5 | 2.4 | 254.6 348.5 | 609.17 | 463.3, 301.80 | Rutin | C27H30O16 |
| 6 | 2.5 | 253, 290 sh, 370 | 629.13 | 477,03, 315.06, 96.95 | Isorhamnetin 3-(6″-galloylglucoside) | C29H26O16 |
| 7 | 3.4 | 220.5 sh, 278.3 | 197.03 | – | Syringic acid | C9H10O5 |
| 8 | 3.7 | 213.4 sh, 280.7 | 359.08 | 197.04 | Syringic acid-4-β-glucoside | C15H20O10 |
| 9 | 5.6 | 269, 290 sh, 355 | 387.15 | 301.80 | Quercetin oxalate | C17H8O11 |
| 10 | 5.8 | 266, 346 | 739.05 | 659.07, 593.3, 447.01, 285.03 | Kaempferol-3-O-galactoside-6″-O-rhamnoside-3′″-O-rhamnoside | C33H40O19 |
| 11 | 6.3 | 289.0, 323.1 sh | 537.09 | 493.11, 358.06, 295.06, 253.04, 185.02, 179.04, 135.04 | Salvianolic acid H or Salvianolic I | C27H22O12 |
| 12 | 6.5 | 217.0, 261.7, 294.9 | 153.01 | 109.02 | 3,4-Dihydroxybenzoic acid (Protocatechuic acid) |
C7H6O4 |
| 13 | 6.6 | 285, 325 | 449.19 | 377.04, 287.05 153.01 | Eriodictyol-7-O-glucoside | C21H22O11 |
| 14 | 6.8 | 289.0, 323.1 sh | 717.12 | 553.08, 519.09, 419.21, 358.06, 339.05, 321.04, 295.06, 179.04 | Salvianolic acid D | C36H30O16 |
| 15 | 7.1 | 289.0, 323.1 sh | 717.12 | 519.09, 421.1, 358.06, 339.05, 321.04, 179.04 | Salvianolic acid B | C36H30O16 |
| 16 | 7.3 | 289.0, 323.1 sh | 987.22 | 451.11, 179.04 | Caffeic acid hexamer | C52H44O20 |
| 17 | 7.4 | 329.1 | 359.06 | 197,1, 179.05, 161.3, 135.04, 133.03, 123.04 | Rosmarinic acid | C18H16O8 |
| 18 | 7.6 | 289.0, 323.1 sh | 717.12 | 553.08, 519.09, 419.21, 358.06, 339.05, 321.04, 185.02, 179.04 | Salvianolic acid L | C36H30O16 |
| 19 | 7.8 | 254,4 | 149.1- | - | Thymol | C10H14O |
| 20 | 7.9 | 350, 268 | 357.06 | 357.09, 342.12, 327.07, 312.02, 297.02 | Retusin | C19H18O7 |
| 21 | 8.0 | 254.6 348.5 | 653.14 | 507.4, 345.07, 330.1, 315.2, 96.95 | Syringetin 3-O-rutinoside | C29H34O17 |
| 22 | 9.2 | 254, 267 | 447.05 | 357.78, 327.21, 285.4 | Orientin (Luteolin 8-C-glucoside) | C21H20O11 |
| 23 | 9.4 | 254, 267 | 447.09 | 357.78, 327.22, 285.4 | Homoorientin (Luteolin 6-C-glucoside) | C21H20O11 |