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. 2015 Jan 5;20(1):542–555. doi: 10.3390/molecules20010542

Table 2.

Structural and chromatographic characteristics of investigated phenolic compounds.

Structural Formula Compounds R1 R2 λmax (nm) Molecular Weight ESI-MS2 (m/s)
HCAs
Inline graphic 		3-p-CoQA H 3-quinic acid 226.1, 310.3 338 336.9, 163.1, 119.0
5-CQA OH 5-quinic acid 241.4, 324.6 354 353.0, 191.0, 135.1
4-CQA OH 4-quinic acid 240.2, 327.0 354 353.0, 190.8, 179.1
3-CQA OH 3-quinic acid 241.4, 324.6 354 353.0, 191.0, 135.1
5-FQA OCH3 5-quinic acid 216.6, 325.8 368 367.0, 191.0, 85.0
Flavonols
Inline graphic 		Q-3-Gal OH galactoside 255.6, 352.8 464 463.3, 301.1, 300.1
Q-3-Glu OH glucoside 255.6, 352.8 464 463.3, 301.2, 300.1
Q-3-Rha OH rhamnoside 255.6, 348.0 448 447.2, 301.2, 300.3
K-3-Gal H galactoside 265.1, 346.8 448 447.2, 285.0, 284.2
K-3-Rha H rhamnoside 263.9, 341.1 432 431.3, 285.2, 284.2
K-3-Glu H glucoside 253.9, 349.2 448 447.2, 285.2, 284.1