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. 2020 Nov 23;53:55. doi: 10.1186/s40659-020-00322-2

Table 1.

Identification of polyphenol compounds detected in methanolic extract from G. tinctoria leaves by UHPLC-DAD-HR-Q-Orbitrap MS

Peak # (Fraction) UV max Tentative identification Molecular formula Retention time (min) Measured mass (m/z) MSn ions
1 (F1) 310 p-Coumaroyl glucoside C15H17O8 9.78 325.09649
2 (F1) 325 Digalloylglucose C20H17O14 9.57 483.07800
3 (F1) 256–353 Rutin C27H29O16 10.32 609.14611 301.03512
4 (F2) 254–354 Quercetin-3-O-rhamnoside C21H20O11 10.63 447.09316
5 (F2) 325 Potentilline C41H27O26 11.55 935.07501 300.99906
6 (F2) 325 Tellimagrandin C41H29O26 12.23 937.08966 300.99908
7 (F3) 282, 326 (shoulder) Ellagic acid C14H5O8 12.43 300.99855 284.2; 229.3; 185.2
8 (F4) 324 Caffeic acid C9H7O4 12.83 179.03441
9 (F4) 325 Chebulagic acid C41H29O27 13.22 953.09017 300.99856
10 (F4) 255–275 Unknown C11H11O6 13.53 239.0560