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HPLC–MS analysis of S. calva extract.
| No. | TR (min) | Adduct | Estimated Mass (m/z) | Exact Mass [M] (g/mol) | Structural Formula | Error (ppm) | Tentative Annotation |
|---|---|---|---|---|---|---|---|
| 1 | 9.882 | M-H | 293.17583 | 294.18367 | C17H26O4 | −2.8 | Glycolic acid 4-hydroxy-3,5-di-t-butylbenzyl ester |
| 2 | 8.044 | M+H | 471.346886 | 470.33905 | C30H46O4 | −0.1 | Uralenic acid, glycyrrhetinic acid |
| 3 | 5.953 | M+H | 489.357451 | 488.34961 | C30H48O5 | −0.0 | Asiatic acid |
| 4 | 4.389 | M+H | 615.389145 | 614.38131 | C36H54O8 | −0.1 | Asiatic acid triacetate |
