Table 2.
Main constituents identified in extracts of O. campechianum by HPLC-DAD, high-performance liquid chromatography/electrospray ionization mass spectrometry (HPLC-ESI-MS), and MS2.
| Compound a | 70% EtOH Extract mg/g d.e. (mg/g drug) b |
MeOH Extract mg/g d.e. (mg/g Drug) b |
UV ʎmax (nm) |
[M − H]− (m/z) | MS2 (m/z) Base Peak |
|---|---|---|---|---|---|
| Caftaric acid | 0.35 ± 0.01 (0.07 ± 0.00) | 0.57 ± 0.01 (0.03 ± 0.00) | 327 | 311 | 149 |
| Chlorogenic acid | 0.27 ± 0.01 (0.05 ± 0.00) | 0.05 ± 0.01 (0.003 ± 0.000) | 327 | 353 | 191 |
| Rutin | 0.63 ± 0.01 (0.12 ± 0.01) | 0.56 ± 0.01 (0.02 ± 0.00) | 255, 355 | 609 | 301 |
| Rosmarinic acid | 22.3 ± 0.2 (4.33 ± 0.01) | 21.8 ± 0.3 (1.17 ± 0.02) | 327 | 359 | 161 |
a Compounds are listed in order of elution, b d.e. = dried extract.