Table 7.
Chromatographic and mass spectrometry data of compounds tentatively identified in B. bituminosa chloroform extract by UHPLC-HR-Orbitrap/MS.
| Peak | Compound a |
t
R
(min) |
[M+H]+ | MS/MS ions (m/z)b |
Molecular Formula | Mass Error (ppm) |
|---|---|---|---|---|---|---|
| Furanocoumarins | ||||||
| 1 | Psoralen | 8.9 | 187.0389 | 115.05, 131.05, 143.05 | C11H6O3 | -0.64 |
| 2 | Angelicin (isopsoralen) | 9.7 | 187.0389 | 115.05, 131.05, 143.05, 159.04 | C11H6O3 | -0.43 |
| Hydroxycinnamic acid | ||||||
| 3 | Plicatin B | 13.3 | 247.1327 | 69.07, 191.07, 215.11 | C15H18O3 | -0.53 |
| Prenylated flavanones | ||||||
| 4 | (Iso)bavachin | 14.1 | 325.1431 | 269.08, 191.11, 135.04, 123.04 | C20H20O4 | -0.92 |
| 5 | (Iso)bavacalchone | 14.2 | 325.1431 | 269.08, 191.11, 149.06, 123.04 | C20H20O4 | -0.92 |
| 6 | Corylifol C | 14.8 | 339.1225 | 283.06, 255.07, | C20H18O5 | -0.59 |
| 7 | Bavachinin | 17.5 | 339.1588 | 283.10, 191.11, 137.06 | C21H22O4 | -0.88 |
| Pterocarpans | ||||||
| 8 | Erybraedin C | 18.5 | 393.2055 | 69.00, 135.04, 191.11 | C25H28O4 | -1.27 |
| 9 | Bitucarpin A | 20.3 | 353.1743 | 137.06, 149.06, 205.12 | C22H24O4 | -1.36 |
| Unknown | ||||||
| 10 | Unidentified | 21.0 | 371.3153 | 101.06, 129.05, 147.07 | − | − |
a
Compound numbers correspond to those in Figure 2 . bThe base ion peak is indicated in bold.