Table 2.
Phenolic acids isolated from Tetrastigma hemsleyanum Diels & Gilg.
| No. | Name | Formula | Molecular Weight | [M-H]- or [M+H]+ (m/z) | MS/MS fragments (m/z) | References |
|---|---|---|---|---|---|---|
| 35 | Salicylic acid | C7H6O3 | – | – | 138 (60), 120 (100), 92 (72) | (Liu, 2000) |
| 36 | Ethyl gallate | C9H10O5 | 198 | – | 198(52), 170 (20), 153 (100), 125(18) |
(Liu, 2000) |
| 37 | Gallic acid | C7H6O5 | 170 | – | 170 (100), 152 (90), 135(22), 125(30), 107(16), 79(28) | (Liu, 2000) |
| 38 | 1-Caffeoylquinic acid | C16H18O9 | – | 353.0878 (−) | 191.0569, 127.0196 | (Sun et al., 2013) |
| 39 | 5-p-Coumaroylquinic acid | C16H18O8 | – | 337.0929 (−) | 191.0565, 163.0425 | (Sun et al., 2013) |
| 40 | 1-p-Coumaroylquinic acid | C16H18O8 | – | 337.0929 (−) | 191.0568 | (Sun et al., 2013) |
| 41 | Resveratrol | C14H12O3 | – | 227 (−) | – | (Zeng, 2013) |
| 42 | Chlorogenic acid | C16H18O9 | – | 353. 0874 (−) | 191 | (Xu et al., 2014a) |
| 43 | Neochlorogenic acid | C16H18O9 | – | 353. 0887 (−) | 191 | (Xu et al., 2014a) |
| 44 | Cryptochlorogenic acid | C16H18O9 | – | 353. 0883 (−) | 191 | (Xu et al., 2014a) |
| 45 | 3,4-Dihydroxybenzoic acid | C7H6O4 | – | 155.16 (+) | – | (Chen, 2014) |
| 46 | 4-Hydroxybenzoic acid | C7H6O3 | – | 139.16 (+) | – | (Chen, 2014) |
| 47 | Trans-4-hydroxycinnamic acid | C9H8O3 | – | 165.15 (+) | – | (Chen, 2014) |
| 48 | Oxyresveratrol | C14H12O4 | – | 243.0651 (−) | – | (Fu et al., 2015) |
| 49 | Protocatechualdehyde | C7H6O3 | – | 137.0237 (−) | – | (Fu et al., 2015) |
| 50 | Piceatannol | C14H12O4 | – | – | – | (Jiang, 2015) |
| 51 | Polydatin | C20H22O8 | – | – | – | (Jiang, 2015) |
| 52 | Vanillic acid | C8H8O4 | 168 | – | 168 | (Ding et al., 2015b) |
| 53 | Citric acid | C6H8O7 | – | 191.0183 (−) | 147, 112 | (Sun C. et al., 2018) |
| 54 | Gallic acid hexoside | C13H16O10 | – | 331.0643 (−) | 169, 125 | (Sun C. et al., 2018) |
| 55 | Protocatecheuic acid 3-O-β-D-glucoside | C13H16O9 | – | 315.0523 (−) | 153, 152, 109, 108 | (Sun C. et al., 2018) |
| 56 | Caffeic acid | C9H8O4 | – | 179.0342 (−) | 135 | (Sun C. et al., 2018) |
“-”: Some relevant information in the literature is incomplete.
(−): [M-H] - (m/z).
(+): [M+H] + (m/z).