| (10a) apigenin-7-O-glucuronide | R1 = glucuronic acid; | R2 = H; | R3 = H; | R4 = H |
| (10b) apigenin-7-O-glucoside | R1 = glucose; | R2 = H; | R3 = H; | R4 = H |
| (11) acacetin-7-O-glucuronide | R1 = glucuronic acid; | R2 = H; | R3 = CH3; | R4 = H |
| (12) apigenin | R1 = H; | R2 = H; | R3 = H; | R4 = H |
| (15) chrysoeriol | R1 = H; | R2 = OCH3; | R3 = H; | R4 = H |
| (16) kaempferol 3-O-glucoside | R1 = H; | R2 = H; | R3 = H; | R4 = glucose |
| (17) isorhamnetin 3-O-glucoside | R1 = H; | R2 = OCH3; | R3 = H; | R4 = glucose |
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