Table 1 ESI-LC-MS/MS analysis of GTK
Sl no. | m/z | MS/MS | Tentative identification | Type of compound | Molecular formula | Ionization mode |
|---|---|---|---|---|---|---|
1 | 191.0568 | 173.10 | Quinic acid | Phenolics | C7H11O6 | Negative |
2 | 197.1452 | 179.02, 135.12 | Syringic acid | Phenolics | C9H10O5 | Negative |
3 | 153.0260 | 109.24 | Protocatechuic acid | Phenolics | C7H6O4 | Negative |
4 | 153.0256 | 109.03 | 2,5-Dihydroxybenzoic acid | Phenolics | C7H6O4 | Negative |
5 | 169.015 | 125.02 | Gallic acid | Phenolics | C7H6O5 | Negative |
6 | 133.0179 | 115.23 | Malic acid | Phenolics | C4H6O5 | Negative |
7 | 305.0386 | 225.02 | Gallo catechin | Catechin | C15H14O7 | Negative |
8 | 343.2245 | 299.25 | Anacardic acid (15:2) | Phenolics | C22H32O3 | Negative |
9 | 341.2087 | 297.24 | Anacardic acid (15:3) | Phenolics | C22H30O3 | Negative |
10 | 345.2314 | 301.26 | Anacardic acid (15:1) | Phenolics | C22H34O3 | Negative |
11 | 353.1289 | 191.05, 179.12 | Caffeoylquinic acid | Phenolics | C16H18O9 | Negative |
12 | 355.023 | 337.02,249.05,116.95 | Chebulic acid | Phenolics | C14H12O11 | Negative |
13 | 463.0288 | 301.04 | Quercetin hexoside | Flavonoid | C21H20O12 | Negative |
14 | 289.0068 | 245.01 | Catechin | Catechin | C15H14O6 | Negative |
15 | 297.154 | 183.01 | Cardanol | Phenolics | C22H30O | Negative |
16 | 173.0491 | 155.03,137.02 | Shikimic acid | Phenolics | C7H10O5 | Negative |
17 | 179.0777 | 162,135.08 | Caffeic acid | Phenolics | C9H8O4 | Negative |
18 | 237.0538 | 193.06 | 6-Hydroxy flavone | Flavonoid | C15H10O3 | Negative |
19 | 163.0499 | 119.05 | 2-Coumaric acid | Phenolics | C9H8O3 | Negative |
20 | 193.0913 | 149.10 | Ferulic acid | Phenolics | C10H10O4 | Negative |
21 | 447.0657 | 300.16 | Quercetin -3-rhamnoside | Flavonoid | C21H20O11 | Negative |
22 | 371.037 | 353.02,191.02 | 2-O-caffeoylglucaric acid | Phenolics | C15H16O11 | Negative |
23 | 477.0594 | 301.14 | Quercetin-3-glucuronide | Flavonoid | C21H17O13 | Negative |
24 | 255.245 | 209.12 | 2′,6-Dihydroxyflavanone | Flavonoid | C15H12O4 | Negative |
25 | 610.1259 | 464, 302 | Rutin | Flavonoid | C27H30O16 | Positive |
26 | 757.718 | 301.14 | Quercetin-3-rhamnosyl glucoside | Flavonoid | C33H40O20 | Positive |
27 | 449.427 | 287.26 | Kaempferol 7-O-glucoside | Flavonoid | C21H42O11 | Positive |
28 | 271.257 | 253.36, 225.17 | Apigenin | Flavonoid | C15H10O5 | Positive |