Table 5.
Tentative assignment of the compounds present in the ethyl acetate fraction of S. vulgare extract analyzed by LC-ESI-MS/MS.
| Peak | RT (min) | [M − H]− (m/z) | MS/MS Ions | Tentative Assignment |
|---|---|---|---|---|
| 1 | 1.4 | 217 | 181, 137, 173, 149, 179, 97 | Hydroxy sulfobenzoic acid |
| 2 | 1.8 | 191 | 111, 173, 147, 117, 129, 101, 87, 155 | Quinic acid |
| 3 | 2.2 | 395 | 179, 269, 293, 305, 377, 275, 359, 351, 253, 335, 209, 139, 249, 125, 235 | Phlorethol-fucoside |
| 267 | 221, 223, 249, 231, 205, 195, 177, 169, 151, 125, 141 | Phlorotannin derivative | ||
| 409 | 265, 291, 365 263, 319, 303, 143, 139, 347, 373, 269 | Phlorotannin derivative | ||
| 4 | 2.8 | 247 | 203, 121, 81, 229, 167 | Dibenzodioxine-1,3,6,8-tetraol |
| 345 | 265, 263, 245, 205, 239, 123, 203, 219, 247, 301, 327 | Fuhalol sulfate | ||
| 287 | 241, 249, 269, 243, 215, 197, 173, 181, 225, 251, 259, 125 | Phlorotannins derivative | ||
| 5 | 4.5 | 469 | 263, 389, 245, 265, 387, 205, 139, 425, 219, 189 | Trifuhalol sulfate |
| 6 | 4.8 | 469 | 263, 245, 389, 265, 387, 205, 139 | Trifuhalol sulfate isomer |
| 7 | 5.6 | 363 | 345, 283, 319, 237, 301, 247, 327, 273, 263, 291, 317, 221, 138, 275, 257 | Phlorotannins derivative |
| 8 | 6.1 | 265 | 221, 247, 139, 123, 89, 193, 237, 219, 229, 177, 191, 153, 141, 125 | Fuhalol |
| 9 | 7.0 | 505 | 425, 407, 289, 331, 487, 279, 215, 363, 379, 461 | Phlorotannin sulfate |
| 10 | 7.3 | 521 | 431, 503, 373, 255, 401, 395, 305, 477, 461, 423, 365, 247, 347, 233, 165, 229 | Phlorotanin derivative |
| 621 | 481, 373, 233, 247, 497, 577, 603, 355, 437, 311, 531, 589, 283 | Pentaphlorethol | ||
| 745 | 497, 727, 619, 353, 479, 601, 701, 371, 339, 209, 585, 229, 245 | Fucopentaphlorethol | ||
| 11 | 8.2 | 573 | 431, 359, 529, 555, 341, 323, 297, 291, 269, 217, 511, 403 | Phlorotannin derivative |
| 12 | 8.4 | 669 | 651, 625, 401, 465, 637, 607, 527, 579, 499, 367, 263, 299, 245 | Dihydroxypentafuhalol |
| 13 | 8.7 | 698 | 680, 666, 550, 432 | Unkown |
| 14 | 9.2 | 503 | 261, 387, 485, 423, 459, 245, 205, 297, 325, 279 359, 173, 467, 441 | Phlorotannin sulfate |
| 15 | 9.6 | 421 | 403, 377, 277, 345, 361, 389, 331, 303, 249, 213 | Phlorotannins derivative |
| 16 | 9.8 | 747 | 729, 703, 685, 621, 387, 497, 481, 607, 667, 715, 515, 359, 303, 261, 249 | Phlorotannins derivative |
| 435 | 417, 403, 391, 249, 315, 207, 329, 373, 355, 345, 293, 217, 189 | Phlorotannins derivative | ||
| 17 | 10.4 | 407 | 375, 331, 313, 389, 357, 287, 345, 259 | Unkown |
| 18 | 10.9 | 577 | 297, 279, 192, 210, 559 | Unkown |
| 19 | 12.6 | 335 | 171, 317, 291, 163, 299, 275, 247, 127 | Unkown |
| 403 | 327, 385, 371, 309, 341, 359, 353, 269, 293 | Unkown | ||
| 20 | 13.0 | 723 | 677, 705, 643, 583, 597, 455, 333 | Phlorotannin sulfate |
| 755 | 679, 737, 692, 641, 477, 351 | Unkown | ||
| 559 | 279, 235, 297, 192, 515, 541 | Unkown | ||
| 713 | 677, 695, 669, 633, 449, 315 | Unkown |