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The HPLC-MS data of compounds 1–5.
| No. | tR/min | molecular formula | [M + H]+/ppm | main fragment ions | compound name |
|---|---|---|---|---|---|
| 1′ | 16.2 | C26H28O15 | 581.24 | 449.18 287.31 | 5,7,3′,4′-Tetrahydroxyflavone 7-O-sambubioside |
| 2′ | 17.1 | — | 581.23 | 449.07 296.24 | Unknown |
| 3′ | 17.5 | — | 595.25 | 495.08 287.21 | Unknown |
| 4′ | 18.5 | C27H30O15 | 595.27 | 449.23 287.08 | Lonicerin |
| 5′ | 19.3 | C21H20O11 | 449.23 | 287.11 | Luteoloside |
