Table 2.
Major phytochemical components of Clausena indica extracts analyzed by gas chromatography-mass spectrometry (GC-MS).
| No. | Identified Compounds | RT (min) |
MW (g/mol) |
Peak Area in Extracts (%) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MRT | MRE | Re1 | Re2 | Re3 | Re4 | Re5 | ||||
| 1 | Palmitic acid | 17.05 | 256 | - | - | < | 13.04 | - | - | - |
| 2 | Seselin | 18.27 | 228 | 7.0 | 8.5 | 12.4 | 2.4 | - | - | 2.9 |
| 3 | l-5-propylthiomethylhydantoin | 19.49 | 188 | 1.3 | 1.2 | - | - | - | - | 1.2 |
| 4 | Braylin | 19.55 | 258 | 9.9 | 11.4 | 13.7 | 6.1 | - | - | - |
| 5 | UC1 | 20.24 | 230 | < | < | - | - | 58.7 | 26.1 | - |
| 6 | Anisocoumarin B | 20.36 | 246 | - | - | - | - | - | 14.1 | - |
| 7 | UC2 | 20.85 | 244 | - | < | - | < | 2.1 | < | 2.3 |
| 8 | Nordentatin | 20.94 | 312 | 5.1 | 5.7 | - | < | 10.9 | 2.1 | 2.9 |
| 9 | UC3 | 21.08 | 297 | < | < | - | - | 2.8 | - | - |
| 10 | Clausine K | 21.25 | 271 | - | < | - | - | - | - | 15.0 |
| 11 | Dentatin | 21.48 | 326 | 70.6 | 68.0 | 61.7 | 10.7 | - | - | - |
| 12 | CA1 | 21.85 | 227 | - | < | - | - | - | 2.8 | - |
| 13 | CA2 | 23.29 | 293 | 1.9 | 2.3 | 3.5 | - | - | - | - |
| 14 | CA3 | 23.34 | 241 | - | - | - | 10.0 | - | - | - |
| 15 | CA4 | 24.85 | 279 | - | - | - | 1.9 | 1.1 | 11.2 | - |
| 16 | CA5 | 24.92 | 285 | - | < | - | - | 5.7 | - | - |
| 17 | 7-Hydroxyheptaphylline | 25.80 | 295 | - | - | - | - | - | 9.2 | - |
| 18 | Clionasterol | 28.41 | 414 | - | - | - | 10.2 | - | - | - |
RT, retention time; MW, molecular weight; UC, unknown compound; CA, carbazole alkaloid; -, not detected; <, trace of peak area that was lower than 1%.