Molecular ion and respective fragments MS2 and MS3 obtained by atmospheric pressure ionization (API)–LC–electrospray ionization (ESI)–MS/MS (positive ion mode) found in the blue extract of C. tinctoria fruits.
Rt (min) | Identity | [M+] | [MS2] | [MS3] |
8.29 | Hermidin-glycoside | 334 | 172 | 157 |
15.63 | Peonidin-3-glucoside | 463 | 301 | |
20.33 | Hermidin-derivative (blue dye) | 501 | 339 | 307; 279; 254 |
52.36 | Delphinidin-3- coumaroylglucoside | 611 | 303 | |
52.67 | Cyanidin-3- coumaroylglucoside | 595 | 449 | 287 |
60.07 | Pelargonidin-3- coumaroylglucoside | 579 | 433 | 271 |
64.23 | Peonidin-3- coumaroylglucoside | 609 | 463 | 301 |