Table 1.
Mass spectrometry of the G. mangostana xanthones extract
| Peak No | Retention time (min) | % Intensity | Isotopic pattern [M-H]- (m/z) | Molecular formula | Compounds |
|---|---|---|---|---|---|
| 1 |
7.4 ± 0.006 |
1.4 ± 0.1 |
413.1408 |
C23H26O7 |
Garcinone C |
| |
|
|
414.1443 |
|
|
| |
|
|
415.1397 |
|
|
| 2 |
7.8 ± 0.001 |
15.6 ± 1.6 |
395.1308 |
C23H24O6 |
γ-mangostin |
| |
|
|
396.1338 |
|
|
| |
|
|
397.1360 |
|
|
| 3 |
8.8 ± 0.013 |
1.2 ± 0.1 |
379.1370 |
C23H24O5 |
8-deoxygartanin |
| |
|
|
380.1381 |
|
|
| |
|
|
381.1440 |
|
|
| 4 |
9.2 ± 0.001 |
80.8 ± 1.6 |
409.1452 |
C24H26O6 |
α-mangostin |
| |
|
|
410.1489 |
|
|
| |
|
|
411.1526 |
|
|
| 5 |
13.5 ± 0.005 |
0.9 ± 0.03 |
423.1604 |
C25H28O6 |
β-mangostin |
| |
|
|
424.1631 |
|
|
| 425.1667 |
The mass was recorded in the negative ion mode (n = 4).