Table 3.
Liquid chromatography-high resolution mass spectrometry (LC-HRMS) analysis of SF32-33.
| Compound | Rt/min | m/z [M+H]+ | Formula | Fragment ions (abundance) | Identification method | Fit score (purity) |
|---|---|---|---|---|---|---|
| (-) Epicatechin | 9.4 | 291.0867 | C15 H14O6 | 291.0867 (100)291.1497 (2.5) | Standard/in-house DB | 990 |
| Rutin | 14.7 | 305.0661, 611.1612 | C15 H12O7 C27H31O16 | 153.0183 (100) 185.0605 (37.8) 201.0571 (19.9) | Standard/in-house DB | 999 |
| Hyperoside | 14.9 | 465.1037 | C21 H20 O12 | 303.0502 (100)303.1152 (2.3)303.4847 (1.8) | Standard/in-house DB | 999 |
| Quercetin | 15.7 | 303.0503, 435.0929 | C15H10O7 C20H18O11 | 303.0501 (100)303.1152 (2.7)303.4851 (1.9) | Standard/in-house DB | 990 |
| Fisetin | 16.3 | 287.0554 | C15H10O6 | 287.0547 (100) 288.0580 (13.1)289.0602 (2.1) | Standard/in-house DB | 928 |
| Quercitrin | 17.0 | 303.0502,449.108 | C15H10O7C21 H20O11 | 303.0500 (100) 304.0533 (15.8)305.0558 (2.6) 449.1082 (12.8) | Standard/in-house DB | 931 |
| Kaempferol-7-neohesperidoside nicotiflorine | 19.0 | 595.1460 | C27H30O15 | 595.1460 (100) 596.1505 (63.3) 597.1533 (22.4) 625.1564 (25.3) | Standard/in-house DB | 820 |
| Naringenin | 19.9 | 773.1933, 273.0762 | C15H12O5 | 773.1933 (100)773.2955 (2.8) 774.1968 (37.6)153.0184 (100)154.0218 (6.3) | Standard/in-house DB | 990 |