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. 2022 Jan 6;11(2):145. doi: 10.3390/foods11020145

Table 2.

RP–UHPLC–ESI–QTOF–MSn data of flavonoids and phenolic acids identified in the aerial parts of E. alata monjauzeana.

Peak Compounds Rt
(min)
Molecular Formula m/z Experimental m/z Calculated Ionization Mode Error Major Fragments (Intensity%) m/z
1 Caffeicacid 1.90 C6H12O6 179.0558 179.0561 N 1.82 135 (6.7)
2 Gallicacid 4.37 C7H6O5 169.0143 169.0142 N −0.39 125 (85), 79 (100)
3 (epi)gallocatechin 6.238 C15H14O7 305.0668 305.0667 N −0.29 125 (3.69)
4 Catechin-O-hexoside 8.222 C21H24O11 451.1243 451.1246 N 0.51 289 (10.41)
5 o-Coumaric acid glucoside 8.594 C15H18O8 325.0928 325.0929 N 3.32 290 (15.02), 145 (8.31), 93 (57.82)
6 Quercetin 3-O-rhamnoside-7-O-glucoside 8.718 C27H30O1 609.1465 609.1461 N −0.53 462 (1.82)
7 Apigenin-6,8-C-dihexoside 9.462 C27H30O15 593.1523 593.1512 N −1.64 473 (53), 383 (26), 353 (44)
8 Epi-catechin 9.895 C15H14O6 289.0718 289.0718 N 0.23 245 (3.8)
9 Apigenin 6-C-pentoside-8-C-hexoside 10.39 C26H28O14 563.1413 563.1413 N −0.99 473 (1.1)
10 Rutin 10.94 C27H30O16 609.1468 609.1468 N −1.05 300 (26)
11 myricetin-O-hexoside 11.507 C21H20O13 479.0835 479.0831 N −0.55 317 (6.45)
12 Quercetin-O-rhamnoside 11.817 C21H20O11 447.0938 447.0933 N −1.14 300 (3.61), 173 (11.85), 111 (10.77)
13 Hyperoside 12.313 C21H20O12 463.0885 463.0882 N −0.36 300 (4.31), 271 (1.09)
14 Luteolin 8-C-glucoside 12.994 C21H20O11 447.0935 447.0938 N −0.38 429 (1.82)
15 Quercetin-3-O-galactoside 13.118 C21H20O12 463.0888 463.0882 N −1.25 301 (4.54)
16 Verbascoside 13.181 C27H28O17 623.1256 623.1254 N −0.26 461 (4.74)
17 Isorhamnetin-3-O-glucoside 13.490 C22H22O12 477.1043 477.1038 N −0.6 300 (5.18)
18 Naringenin-O-hexoside 13.676 C21H22O10 433.1134 433.114 N 0.91 271 (15.2)
19 Kaempferolrhamnoside 14.792 C21H20O10 431.0986 431.0984 N −0.5 285 (4.74)
20 Quercetin-3-O-glucoside 14.91 C21H20O12 463.0883 463.0882 N −0.02 300 (39)
21 Luteolin 19.68 C15H10O6 285.0406 285.0405 N −0.57 133 (2)