TABLE 2.
Assignment of identities to isoflavonoids and saponins detected in the HPLC chemical profiles of Astragali radix by high-resolution LC-MS.
| No. a | Identification | Formula [M] | Experimental | Theoretical |
|---|---|---|---|---|
| F1 | Calycosin 7-O-β-D-glucoside (CG) b | C22H22O10 | [M + H, 447.1285] | 447.1291 |
| F2 | Calycosin 7-O-β-D-(6″-malonyl)-glucoside (CGM) | C25H24O13 | [M + H, 533.1246] | 533.1295 |
| F3 | Ononin (FG) b | C22H22O9 | [M + H, 431.1328] | 431.1342 |
| F4 | (6αR,11αR)-3-hydroxyl-9,10-dimethoxypterocarpan-3-O-β-D-glucoside | C23H26O10 | [M + H, 463.1585] | 463.1604 |
| F5 | (3R)-2′7-dihydroxy-3′,4′-dimethoxyisoflavan-7-O-β-D-glucoside | C23H28O10 | [M + H, 465.1748] | 465.176 |
| F6 | 6″-O-malonylononin (FGM) | C25H24O12 | [M + H, 517.1364] | 517.1346 |
| F7 | Calycosin (C) b | C16H12O5 | [M + H, 285.07151] | 285.0762 |
| F8 | Formononetin (F) b | C16H12O4 | [M + H, 269.0886] | 269.2812 |
| F9 | (6αR, 11αR)-3-hydroxy-9,10-dimethoxypterocarpan b | C17H16O5 | [M + H, 301.1071] | 301.1071 |
| F10 | (3R)-7,2′-dihydroxy-3′,4′-dimethoxyisoflavan b | C17H18O5 | [M + H, 303.1239] | 303.1232 |
| S1 | Astragaloside IV (Ag IV) b | C41H68O14 | [M-H + FA-H, 829.4547] | 829.4585 |
| S3 | Astragaloside Ⅱ (Ag Ⅱ) b | C43H70O15 | [M-H + FA, 871.4705] | 871.1691 |
| S4 | Isoastragaloside Ⅱ (iAg Ⅱ) b | C43H70O15 | [M-H + FA, 871.4705] | 871.1691 |
| S5 | Astragaloside I (Ag I) b | C45H72O16 | [M-H + FA, 913.4780] | 913.4796 |
| S6 | Isoastragaloside I (iAg I) b | C45H72O16 | [M-H + FA, 913.4780] | 913.4796 |
| S7 | Acetylastragaloside Ⅰ (AgA I) | C47H74O17 | [M-H + FA, 955.4964] [M-H, 911.5013] | 955.4902 |